{"id":2689,"date":"2026-03-02T00:00:00","date_gmt":"2026-03-02T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/products\/sfp-100km-transceiver-explained\/"},"modified":"2026-06-22T04:07:45","modified_gmt":"2026-06-22T04:07:45","slug":"sfp-100km-transceiver-explained","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/products\/sfp-100km-transceiver-explained","title":{"rendered":"B\u1ed9 thu ph\u00e1t SFP 100 km l\u00e0 g\u00ec? H\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt so s\u00e1nh ER v\u00e0 ZR"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fffd734617224d95b0ad375f59cca76a-1024x536.jpg\" alt=\"What Is a SFP 100km Transceiver? ER vs. ZR Technical Guide\" class=\"wp-image-2678\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fffd734617224d95b0ad375f59cca76a-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fffd734617224d95b0ad375f59cca76a-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fffd734617224d95b0ad375f59cca76a-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fffd734617224d95b0ad375f59cca76a-18x9.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fffd734617224d95b0ad375f59cca76a.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A <strong>SFP <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476870.htm\"><strong>B\u1ed9 thu ph\u00e1t 100 km<\/strong><\/a> l\u00e0 m\u1ed9t m\u00f4-\u0111un quang h\u1ecdc t\u1ea7m xa \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n d\u1eabn c\u00f4ng su\u1ea5t cao tr\u00ean s\u1ee3i quang \u0111\u01a1n mode (SMF), th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf c\u1eeda s\u1ed5 suy hao th\u1ea5p 1550 nm nh\u1eb1m h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch l\u00ean t\u1edbi g\u1ea7n 100 km trong \u0111i\u1ec1u ki\u1ec7n li\u00ean k\u1ebft \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. C\u00e1c m\u00f4-\u0111un n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i l\u00e0 <strong>ER (T\u1ea7m m\u1edf r\u1ed9ng)<\/strong> or <strong>ZR (lo\u1ea1i 80\u2013100 km)<\/strong> t\u00f9y theo ng\u00e2n s\u00e1ch quang, c\u00f4ng su\u1ea5t ph\u00e1t, \u0111\u1ed9 nh\u1ea1y b\u1ed9 thu v\u00e0 m\u1ee9c \u0111\u1ed9 tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u00f4i tr\u01b0\u1eddng Ethernet 10 Gigabit, c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc t\u1ea7m xa th\u01b0\u1eddng g\u1eafn li\u1ec1n v\u1edbi c\u00e1c \u0111\u1eb7c t\u1ea3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong IEEE 802.3ae, trong khi c\u00e1c tri\u1ec3n khai t\u1ed1c \u0111\u1ed9 cao h\u01a1n cho kho\u1ea3ng c\u00e1ch xa li\u00ean quan \u0111\u1ebfn IEEE 802.3ba. Tuy nhi\u00ean, c\u1ea7n ph\u00e2n bi\u1ec7t r\u00f5 gi\u1eefa <strong>y\u1ebfu t\u1ed1 h\u00ecnh d\u1ea1ng<\/strong>, <strong>l\u1edbp t\u1ea7m xa<\/strong>, and <strong>tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><em>y\u1ebfu t\u1ed1 h\u00ecnh d\u1ea1ng<\/em> (<a href=\"https:\/\/www.l-p.com\/products\/482654.htm\" target=\"_self\">SFP+<\/a>, <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/xfp-vs-sfp-plus-key-differences\/\" target=\"_blank\" rel=\"\">XFP<\/a>, <a href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\" target=\"_self\">QSFP<\/a>, v.v.) x\u00e1c \u0111\u1ecbnh lo\u1ea1i m\u00f4-\u0111un v\u1eadt l\u00fd.<\/p><\/li>\n\n\n\n<li><p><em>Ch\u1ec9 \u0111\u1ecbnh t\u1ea7m xa<\/em> (ER, ZR) m\u00f4 t\u1ea3 ng\u00e2n s\u00e1ch quang v\u00e0 kho\u1ea3ng c\u00e1ch m\u1ee5c ti\u00eau.<\/p><\/li>\n\n\n\n<li><p><em>C\u00e1c \u0111i\u1ec1u kho\u1ea3n ti\u00eau chu\u1ea9n IEEE<\/em> quy \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u PMD Ethernet \u1edf c\u00e1c kho\u1ea3ng c\u00e1ch c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: 40 km \u0111\u1ed1i v\u1edbi 10G ER).<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">L\u01b0u \u00fd r\u1eb1ng \u201c100 km\u201d kh\u00f4ng ph\u1ea3i l\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o\u2014\u0111\u00e2y l\u00e0 m\u1ed9t l\u1edbp t\u1ea7m xa d\u1ef1a tr\u00ean c\u00e1c gi\u1ea3 \u0111\u1ecbnh danh ngh\u0129a v\u1ec1 ng\u00e2n s\u00e1ch quang. Hi\u1ec7u n\u0103ng th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 suy hao s\u1ee3i quang (th\u01b0\u1eddng kho\u1ea3ng ~0,20\u20130,25 dB\/km \u1edf b\u01b0\u1edbc s\u00f3ng 1550 nm \u0111\u1ed1i v\u1edbi s\u1ee3i OS2)<\/p><\/li>\n\n\n\n<li><p>Suy hao t\u1ea1i \u0111i\u1ec3m n\u1ed1i v\u00e0 m\u1ed1i h\u00e0n<\/p><\/li>\n\n\n\n<li><p>T\u00e1n s\u1eafc s\u1eafc m\u00e0u<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u d\u1ef1 ph\u00f2ng h\u1ec7 th\u1ed1ng<\/p><\/li>\n\n\n\n<li><p>Ng\u01b0\u1ee1ng qu\u00e1 t\u1ea3i b\u1ed9 thu<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Do nh\u1eefng bi\u1ebfn s\u1ed1 n\u00e0y, m\u1ed9t b\u1ed9 thu ph\u00e1t \u0111\u01b0\u1ee3c x\u1ebfp h\u1ea1ng 100 km c\u00f3 th\u1ec3 \u0111\u00f2i h\u1ecfi khu\u1ebfch \u0111\u1ea1i quang (nh\u01b0 EDFA) trong m\u1ed9t s\u1ed1 tri\u1ec3n khai, trong khi \u1edf m\u00f4i tr\u01b0\u1eddng s\u1ee3i quang s\u1ea1ch, t\u1ed5n hao th\u1ea5p th\u00ec n\u00f3 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n khu\u1ebfch \u0111\u1ea1i. V\u00ec v\u1eady, vi\u1ec7c x\u00e1c th\u1ef1c k\u1ef9 thu\u1eadt th\u00f4ng qua t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch li\u00ean k\u1ebft l\u00e0 b\u1eaft bu\u1ed9c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p ph\u00e2n t\u00edch k\u1ef9 thu\u1eadt c\u00f3 c\u1ea5u tr\u00fac v\u1ec1:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nh\u1eefng y\u1ebfu t\u1ed1 x\u00e1c \u0111\u1ecbnh m\u1ed9t b\u1ed9 thu ph\u00e1t SFP 100 km<\/p><\/li>\n\n\n\n<li><p>S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c l\u1edbp t\u1ea7m xa ER v\u00e0 ZR<\/p><\/li>\n\n\n\n<li><p>Ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch quang<\/p><\/li>\n\n\n\n<li><p>B\u01b0\u1edbc s\u00f3ng v\u00e0 c\u00f4ng ngh\u1ec7 laser \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/p><\/li>\n\n\n\n<li><p>C\u00e1c xem x\u00e9t v\u1ec1 khu\u1ebfch \u0111\u1ea1i<\/p><\/li>\n\n\n\n<li><p>C\u00e1c r\u1ee7i ro tri\u1ec3n khai v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 t\u01b0\u01a1ng th\u00edch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee5c ti\u00eau l\u00e0 l\u00e0m r\u00f5 c\u00e1c gi\u1ea3 \u0111\u1ecbnh k\u1ef9 thu\u1eadt, lo\u1ea1i b\u1ecf nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn v\u00e0 cung c\u1ea5p h\u01b0\u1edbng d\u1eabn tri\u1ec3n khai ph\u00f9 h\u1ee3p ti\u00eau chu\u1ea9n cho c\u00e1c li\u00ean k\u1ebft quang Ethernet \u0111\u01b0\u1eddng d\u00e0i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>B\u1ed9 thu ph\u00e1t SFP 100 km l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476870.htm\">SFP 100 km<\/a> l\u00e0 m\u1ed9t m\u00f4-\u0111un quang h\u1ecdc t\u1ea7m xa, c\u00f4ng su\u1ea5t cao, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n d\u1eabn tr\u00ean <strong>v\u00e0 s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/strong> trong c\u1eeda s\u1ed5 suy hao th\u1ea5p 1550 nm, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cung c\u1ea5p ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t quang th\u01b0\u1eddng thu\u1ed9c l\u1edbp \u226530 dB, cho ph\u00e9p kho\u1ea3ng c\u00e1ch truy\u1ec1n \u0111\u1ea1t g\u1ea7n 100 km trong \u0111i\u1ec1u ki\u1ec7n li\u00ean k\u1ebft \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea7n l\u00e0m r\u00f5 r\u1eb1ng \u201c100 km\u201d l\u00e0 ph\u00e2n lo\u1ea1i kho\u1ea3ng c\u00e1ch d\u1ef1a tr\u00ean c\u00e1c gi\u1ea3 \u0111\u1ecbnh v\u1ec1 ng\u00e2n s\u00e1ch quang \u2014 ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 kho\u1ea3ng c\u00e1ch \u0111\u1ea3m b\u1ea3o d\u01b0\u1edbi m\u1ecdi \u0111i\u1ec1u ki\u1ec7n s\u1ee3i quang.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdeaaa94ceec487fa22d49f02f792b87.jpg\" alt=\"What Is a SFP 100km Transceiver?\" class=\"wp-image-2679\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdeaaa94ceec487fa22d49f02f792b87.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdeaaa94ceec487fa22d49f02f792b87-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdeaaa94ceec487fa22d49f02f792b87-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdeaaa94ceec487fa22d49f02f792b87-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fdeaaa94ceec487fa22d49f02f792b87-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">100 km <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475854.htm\">C\u00e1c m\u00f4-\u0111un SFP<\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang bi\u1ec7t cho <strong>s\u1ee3i quang \u0111\u01a1n mode<\/strong>, th\u01b0\u1eddng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>s\u1ee3i quang tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n ITU-T G.652.D<\/p><\/li>\n\n\n\n<li><p>s\u1ee3i quang ngo\u00e0i tr\u1eddi OS2 c\u00f3 suy hao th\u1ea5p<\/p><\/li>\n\n\n\n<li><p>\u0111\u01b0\u1eddng k\u00ednh l\u00f5i ~9 \u00b5m<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111a mode (MMF) kh\u00f4ng ph\u00f9 h\u1ee3p do t\u00e1n s\u1eafc mode v\u00e0 suy hao qu\u00e1 m\u1ee9c \u1edf kho\u1ea3ng c\u00e1ch d\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i b\u01b0\u1edbc s\u00f3ng 1550 nm, s\u1ee3i quang OS2 hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng th\u1ec3 hi\u1ec7n m\u1ee9c suy hao kho\u1ea3ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>~0,20\u20130,25 dB\/km (ph\u1ee5 thu\u1ed9c \u0111i\u1ec1u ki\u1ec7n th\u1ef1c \u0111\u1ecba)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi kho\u1ea3ng c\u00e1ch 100 km, ri\u00eang suy hao s\u1ee3i quang c\u00f3 th\u1ec3 chi\u1ebfm:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">20\u201325 dB t\u1ed5n th\u1ea5t (kh\u00f4ng bao g\u1ed3m \u0111\u1ea7u n\u1ed1i v\u00e0 m\u1ed1i n\u1ed1i)<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u00fd do v\u00ec sao thi\u1ebft k\u1ebf c\u00f3 ng\u00e2n s\u00e1ch quang cao l\u00e0 b\u1eaft bu\u1ed9c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ho\u1ea1t \u0111\u1ed9ng trong c\u1eeda s\u1ed5 suy hao th\u1ea5p 1550 nm<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t 100 km ho\u1ea1t \u0111\u1ed9ng trong <strong>v\u00f9ng 1550 nm<\/strong> v\u00ec:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>V\u00f9ng n\u00e0y mang l\u1ea1i m\u1ee9c suy hao th\u1ea5p nh\u1ea5t trong s\u1ee3i quang \u0111\u01a1n mode ti\u00eau chu\u1ea9n<\/p><\/li>\n\n\n\n<li><p>V\u00f9ng n\u00e0y tr\u00f9ng kh\u1edbp v\u1edbi d\u1ea3i C (kho\u1ea3ng 1530\u20131565 nm)<\/p><\/li>\n\n\n\n<li><p>V\u00f9ng n\u00e0y t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 khu\u1ebfch \u0111\u1ea1i quang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u01b0\u1edbc s\u00f3ng ng\u1eafn h\u01a1n nh\u01b0 850 nm ho\u1eb7c 1310 nm kh\u00f4ng ph\u00f9 h\u1ee3p cho c\u00e1c kho\u1ea3ng c\u00e1ch Ethernet 100 km do suy hao cao h\u01a1n v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c v\u1ec1 t\u00e1n s\u1eafc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/1550nm-optical-transceiver-transmission-distances\/\">1550 nm<\/a> c\u1eeda s\u1ed5 n\u00e0y do \u0111\u00f3 l\u00e0 n\u1ec1n t\u1ea3ng th\u1ef1c t\u1ebf cho c\u00e1c gi\u1ea3i ph\u00e1p quang h\u1ecdc t\u1ea7m xa v\u00e0 \u0111\u00f4 th\u1ecb <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/long-distance-transceiver-types-reach-selection-guide\/\">quang h\u1ecdc t\u1ea7m xa<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00f4ng su\u1ea5t ph\u00e1t cao<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 b\u00f9 \u0111\u1eafp suy hao s\u1ee3i quang d\u00e0i, c\u00e1c module 100 km \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi c\u00f4ng su\u1ea5t ph\u00e1t ra cao \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c module quang h\u1ecdc t\u1ea7m ng\u1eafn ho\u1eb7c t\u1ea7m trung.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee9c c\u00f4ng su\u1ea5t ph\u00e1t \u0111i\u1ec3n h\u00ecnh (ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1ch tri\u1ec3n khai):<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Th\u01b0\u1eddng n\u1eb1m trong d\u1ea3i dBm d\u01b0\u01a1ng<\/p><\/li>\n\n\n\n<li><p>Th\u00f4ng th\u01b0\u1eddng t\u1eeb +2 dBm \u0111\u1ebfn +6 dBm \u0111\u1ed1i v\u1edbi c\u00e1c module quang h\u1ecdc ZR-class c\u00f3 ng\u00e2n s\u00e1ch cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u00e1 tr\u1ecb ch\u00ednh x\u00e1c thay \u0111\u1ed5i theo nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 ph\u00e2n lo\u1ea1i kho\u1ea3ng c\u00e1ch, v\u00e0 lu\u00f4n ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c minh tr\u00ean b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a module.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng su\u1ea5t ph\u00e1t cao h\u01a1n tr\u1ef1c ti\u1ebfp l\u00e0m t\u0103ng ng\u00e2n s\u00e1ch quang s\u1eb5n c\u00f3, nh\u01b0ng c\u0169ng \u0111\u1eb7t ra c\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ea7n xem x\u00e9t nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>qu\u00e1 t\u1ea3i b\u1ed9 thu t\u1ea1i kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/li>\n\n\n\n<li><p>tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh an to\u00e0n quang h\u1ecdc<\/p><\/li>\n\n\n\n<li><p>C\u00e2n b\u1eb1ng c\u00f4ng su\u1ea5t khi s\u1eed d\u1ee5ng khu\u1ebfch \u0111\u1ea1i<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 nh\u1ea1y \u0111\u1ea7u thu cao<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i c\u00f4ng su\u1ea5t ph\u00e1t cao h\u01a1n, c\u00e1c module SFP 100 km c\u00f2n t\u00edch h\u1ee3p \u0111\u1ea7u thu c\u00f3 \u0111\u1ed9 nh\u1ea1y \u0111\u01b0\u1ee3c n\u00e2ng cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 nh\u1ea1y \u0111\u1ea7u thu \u0111i\u1ec3n h\u00ecnh cho kho\u1ea3ng c\u00e1ch xa <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477980.htm\">10G ZR<\/a>quang h\u1ecdc lo\u1ea1i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng \u221224 dBm \u0111\u1ebfn \u221228 dBm (ph\u1ee5 thu\u1ed9c v\u00e0o tri\u1ec3n khai)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 nh\u1ea1y cao cho ph\u00e9p ph\u00e1t hi\u1ec7n c\u00e1c t\u00edn hi\u1ec7u quang y\u1ebfu sau suy hao s\u1ee3i d\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y c\u0169ng c\u00f3 ngh\u0129a l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ng\u01b0\u1ee1ng qu\u00e1 t\u1ea3i ph\u1ea3i \u0111\u01b0\u1ee3c tu\u00e2n th\u1ee7<\/p><\/li>\n\n\n\n<li><p>C\u00f3 th\u1ec3 c\u1ea7n b\u1ed9 suy gi\u1ea3m quang \u0111\u1ed1i v\u1edbi c\u00e1c \u0111o\u1ea1n ng\u1eafn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 t\u1ea3i \u0111\u1ea7u thu l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 tri\u1ec3n khai ph\u1ed5 bi\u1ebfn khi <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478340.htm\">c\u00e1c module kho\u1ea3ng c\u00e1ch xa<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean c\u00e1c kho\u1ea3ng c\u00e1ch s\u1ee3i ng\u1eafn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh c\u1ee7a transceiver SFP 100 km<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u00f4 t\u1ea3<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>L\u1ee3i \u00edch Ch\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-an-isp-internet-service-provider\/\">However, many beginners are confused by common questions such as:<\/a> L\u00f5i m\u1ea1ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c li\u00ean k\u1ebft l\u00f5i khu v\u1ef1c k\u1ebft n\u1ed1i c\u00e1c n\u00fat ch\u00ednh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i 10G chi ph\u00ed hi\u1ec7u qu\u1ea3 m\u00e0 kh\u00f4ng c\u1ea7n DWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 100 km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1eadp trung \u0111\u00f4 th\u1ecb<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1eadp h\u1ee3p l\u01b0u l\u01b0\u1ee3ng t\u1eeb l\u1edbp truy c\u1eadp l\u00ean l\u00f5i \u0111\u00f4 th\u1ecb<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gi\u1ea3m y\u00eau c\u1ea7u s\u1ee3i quang, h\u1ed7 tr\u1ee3 b\u1ed9 khu\u1ebfch \u0111\u1ea1i quang EDFA t\u00f9y ch\u1ecdn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40\u2013100 km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft gi\u1eefa c\u00e1c th\u00e0nh ph\u1ed1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i c\u00e1c th\u00e0nh ph\u1ed1 ho\u1eb7c v\u0103n ph\u00f2ng khu v\u1ef1c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c tri\u1ec3n khai, gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh (OPEX)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 100 km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c kho\u1ea3ng c\u00e1ch n\u00f4ng th\u00f4n d\u00e0i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft c\u00e1c khu v\u1ef1c xa x\u00f4i v\u1edbi h\u1ea1 t\u1ea7ng s\u1ee3i h\u1ea1n ch\u1ebf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1i \u0111a h\u00f3a t\u1ea7m xa v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng t\u1ed1i thi\u1ec3u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 100 km<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ed5ng quan v\u1ec1 transceiver 100 km<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t transceiver SFP 100 km \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi b\u1ed1n \u0111\u1eb7c t\u00ednh c\u1ed1t l\u00f5i:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>Ho\u1ea1t \u0111\u1ed9ng tr\u00ean s\u1ee3i quang \u0111\u01a1n mode<\/p><\/li>\n\n\n\n<li><p>S\u1eed d\u1ee5ng c\u1eeda s\u1ed5 suy hao th\u1ea5p \u1edf b\u01b0\u1edbc s\u00f3ng 1550 nm<\/p><\/li>\n\n\n\n<li><p>C\u00f4ng su\u1ea5t quang ph\u00e1t cao<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 nh\u1ea1y \u0111\u1ea7u thu cao<\/p><\/li>\n\n\n\n<li><p>Ng\u00e2n s\u00e1ch quang th\u01b0\u1eddng thu\u1ed9c l\u1edbp \u226530 dB<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, vi\u1ec7c \u0111\u1ea1t \u0111\u01b0\u1ee3c 100 km trong th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch li\u00ean k\u1ebft m\u1ed9t c\u00e1ch nghi\u00eam ng\u1eb7t, ch\u1ea5t l\u01b0\u1ee3ng s\u1ee3i, qu\u1ea3n l\u00fd t\u00e1n s\u1eafc v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch d\u1ef1 ph\u00f2ng h\u1ec7 th\u1ed1ng ph\u00f9 h\u1ee3p \u2014 ch\u1ee9 kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o nh\u00e3n in tr\u00ean module.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>SFP ER so v\u1edbi ZR: S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c transceiver ER (kho\u1ea3ng c\u00e1ch m\u1edf r\u1ed9ng) v\u00e0 ZR (lo\u1ea1i 80\u2013100 km) \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng trong c\u1eeda s\u1ed5 1550 nm tr\u00ean s\u1ee3i quang \u0111\u01a1n mode, nh\u01b0ng ch\u00fang kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 <strong>\u0111\u1ecbnh ngh\u0129a ti\u00eau chu\u1ea9n, ng\u00e2n s\u00e1ch quang v\u00e0 gi\u1ea3 \u0111\u1ecbnh tri\u1ec3n khai<\/strong>. ER \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a ch\u00ednh th\u1ee9c trong c\u00e1c \u0111\u1eb7c t\u1ea3 Ethernet IEEE cho ho\u1ea1t \u0111\u1ed9ng kho\u1ea3ng ~40 km, trong khi ZR th\u01b0\u1eddng l\u00e0 ph\u1ea7n m\u1edf r\u1ed9ng c\u00f4ng nghi\u1ec7p c\u00f3 c\u00f4ng su\u1ea5t cao h\u01a1n nh\u1eb1m h\u01b0\u1edbng t\u1edbi c\u00e1c kho\u1ea3ng c\u00e1ch 80\u2013100 km.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d3ae71fd0dd642ceacd27b8ec3363c62.jpg\" alt=\"SFP ER vs. ZR: What\u2019s the Difference?\" class=\"wp-image-2680\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d3ae71fd0dd642ceacd27b8ec3363c62.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d3ae71fd0dd642ceacd27b8ec3363c62-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d3ae71fd0dd642ceacd27b8ec3363c62-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d3ae71fd0dd642ceacd27b8ec3363c62-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d3ae71fd0dd642ceacd27b8ec3363c62-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ed1i c\u1ea3nh ti\u00eau chu\u1ea9n<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/476909.htm\" target=\"_self\"><strong>10GBASE-ER<\/strong><\/a><strong> (40 km)<\/strong> \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a theo IEEE 802.3ae.<\/p><\/li>\n\n\n\n<li><p>C\u00e1c tri\u1ec3n khai t\u1ed1c \u0111\u1ed9 cao, t\u1ea7m xa li\u00ean quan \u0111\u1ebfn IEEE 802.3ba.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00e0m r\u00f5 quan tr\u1ecdng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>ER \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a r\u00f5 r\u00e0ng cho kho\u1ea3ng c\u00e1ch 40 km trong Ethernet 10G.<\/p><\/li>\n\n\n\n<li><p>\u201cZR\u201d cho 10G (lo\u1ea1i 80 km \/ 100 km) kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a nh\u01b0 m\u1ed9t \u0111i\u1ec1u kho\u1ea3n ri\u00eang bi\u1ec7t c\u1ee7a IEEE; thay v\u00e0o \u0111\u00f3, n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai d\u01b0\u1edbi d\u1ea1ng b\u1ed9 quang h\u1ecdc c\u00f3 ng\u00e2n s\u00e1ch quang h\u1ecdc cao h\u01a1n do nh\u00e0 cung c\u1ea5p m\u1edf r\u1ed9ng, \u0111\u1ed3ng th\u1eddi v\u1eabn duy tr\u00ec khung d\u1eef li\u1ec7u Ethernet.<\/p><\/li>\n\n\n\n<li><p>\u1ede t\u1ed1c \u0111\u1ed9 cao h\u01a1n (v\u00ed d\u1ee5: 100G), thu\u1eadt ng\u1eef ZR c\u00f3 th\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c hi\u1ec7p \u0111\u1ecbnh ti\u00eau chu\u1ea9n \u0111a nh\u00e0 s\u1ea3n xu\u1ea5t (MSA) kh\u00e1c nhau ho\u1eb7c c\u00e1c tri\u1ec3n khai \u0111\u1ed3ng pha (coherent), v\u1ed1n v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c b\u1ed9 quang h\u1ecdc ZR ph\u00e1t hi\u1ec7n tr\u1ef1c ti\u1ebfp (direct-detect) \u1edf m\u1ee9c 10G.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">So s\u00e1nh ER v\u00e0 ZR<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Tham s\u1ed1<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476852.htm\">ER<\/a><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476910.htm\">ZR<\/a><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u1ea7m ho\u1ea1t \u0111\u1ed9ng ti\u00eau chu\u1ea9n<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~40 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~80\u2013100 km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>B\u01b0\u1edbc s\u00f3ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550 nm<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Ng\u00e2n s\u00e1ch quang h\u1ecdc<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~20\u201325 dB<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~28\u201332 dB<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>C\u1ea7n khu\u1ebfch \u0111\u1ea1i quang<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng (trong gi\u1edbi h\u1ea1n t\u1ea7m ho\u1ea1t \u0111\u1ed9ng theo \u0111\u1eb7c t\u1ea3)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u00f4i khi (t\u00f9y thu\u1ed9c v\u00e0o t\u1ed5n hao \u0111o\u1ea1n c\u00e1p)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u1ee8ng d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u00f4 th\u1ecb \/ t\u1eadp trung<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i \/ \u0111\u00f4 th\u1ecb m\u1edf r\u1ed9ng<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u25c6 \u0110\u1ecbnh ngh\u0129a t\u1ea7m ho\u1ea1t \u0111\u1ed9ng<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ER (T\u1ea7m m\u1edf r\u1ed9ng)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u0111a kho\u1ea3ng 40 km tr\u00ean c\u00e1p quang \u0111\u01a1n mode<\/p><\/li>\n\n\n\n<li><p>Gi\u1ea3 \u0111\u1ecbnh \u0111\u1ed9 t\u00e1n s\u1eafc v\u00e0 suy hao \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1ee3c chu\u1ea9n h\u00f3a \u0111\u1ea7y \u0111\u1ee7 theo IEEE cho 10GBASE-ER<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ZR (T\u1ea7m ho\u1ea1t \u0111\u1ed9ng m\u1edf r\u1ed9ng \u2013 Extended Extended Reach)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c \u0111o\u1ea1n c\u00e1p d\u00e0i h\u01a1n, th\u01b0\u1eddng thu\u1ed9c lo\u1ea1i 80\u2013100 km<\/p><\/li>\n\n\n\n<li><p>C\u00f4ng su\u1ea5t ph\u00e1t cao h\u01a1n v\u00e0\/ho\u1eb7c \u0111\u1ed9 nh\u1ea1y \u0111\u1ea7u thu c\u1ea3i thi\u1ec7n<\/p><\/li>\n\n\n\n<li><p>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai v\u01b0\u1ee3t qu\u00e1 c\u00e1c \u0111\u1ecbnh ngh\u0129a PMD nghi\u00eam ng\u1eb7t c\u1ee7a IEEE (\u0111\u1eb7c th\u00f9 theo nh\u00e0 cung c\u1ea5p \u0111\u1ed1i v\u1edbi 10G)<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u25c6 Kh\u00e1c bi\u1ec7t v\u1ec1 ng\u00e2n s\u00e1ch quang h\u1ecdc<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u00e2n s\u00e1ch quang h\u1ecdc x\u00e1c \u0111\u1ecbnh t\u1ed5n hao li\u00ean k\u1ebft t\u1ed1i \u0111a cho ph\u00e9p:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Ng\u00e2n s\u00e1ch quang h\u1ecdc = C\u00f4ng su\u1ea5t ph\u00e1t t\u1ed1i thi\u1ec3u \u2212 \u0110\u1ed9 nh\u1ea1y \u0111\u1ea7u thu<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea1m vi t\u00ednh to\u00e1n k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>ER:<\/strong> ~20\u201325 dB<\/p><\/li>\n\n\n\n<li><p><strong>ZR:<\/strong> ~28\u201332 dB<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 ch\u00eanh l\u1ec7ch ng\u00e2n s\u00e1ch quang h\u1ecdc th\u00eam ~6\u20138 dB n\u00e0y cho ph\u00e9p kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng kho\u1ea3ng c\u00e1ch \u0111\u00e1ng k\u1ec3, v\u1edbi gi\u1ea3 \u0111\u1ecbnh suy hao s\u1ee3i quang kho\u1ea3ng 0.20\u20130.25 dB\/km t\u1ea1i b\u01b0\u1edbc s\u00f3ng 1550 nm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, t\u1ea7m ho\u1ea1t \u0111\u1ed9ng d\u00e0i h\u01a1n c\u0169ng l\u00e0m t\u0103ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1ef1 t\u00edch l\u0169y t\u00e1n s\u1eafc s\u1eafc th\u00e1i<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 nh\u1ea1y \u0111\u1ed1i v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng s\u1ee3i quang<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u c\u00e2n b\u1eb1ng c\u00f4ng su\u1ea5t<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u25c6 C\u00e2n nh\u1eafc v\u1ec1 khu\u1ebfch \u0111\u1ea1i quang<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tri\u1ec3n khai ER<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai m\u00e0 kh\u00f4ng c\u1ea7n khu\u1ebfch \u0111\u1ea1i quang<\/p><\/li>\n\n\n\n<li><p>Tr\u1ef1c ti\u1ebfp <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/point-to-point-network-architecture-guide\/\" target=\"_blank\" rel=\"\">c\u00e1c li\u00ean k\u1ebft \u0111i\u1ec3m-\u0111i\u1ec3m<\/a> trong ph\u1ea1m vi \u0111o\u1ea1n c\u00e1p \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tri\u1ec3n khai ZR<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n khu\u1ebfch \u0111\u1ea1i tr\u00ean s\u1ee3i quang c\u00f3 t\u1ed5n hao th\u1ea5p<\/p><\/li>\n\n\n\n<li><p>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c gh\u00e9p v\u1edbi b\u1ed9 khu\u1ebfch \u0111\u1ea1i EDFA trong c\u00e1c \u0111o\u1ea1n c\u00e1p d\u00e0i h\u01a1n ho\u1eb7c c\u00f3 t\u1ed5n hao cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Nh\u1ea1y c\u1ea3m h\u01a1n v\u1edbi t\u00e1n s\u1eafc tr\u00ean kho\u1ea3ng c\u00e1ch m\u1edf r\u1ed9ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c c\u1ea7n hay kh\u00f4ng c\u1ea7n khu\u1ebfch \u0111\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ed5ng t\u1ed5n hao \u0111o\u1ea1n c\u00e1p, ch\u1ee9 kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o kho\u1ea3ng c\u00e1ch danh \u0111\u1ecbnh.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u25c6 Ph\u1ea1m vi \u1ee9ng d\u1ee5ng<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477946.htm\"><strong>B\u1ed9 quang h\u1ecdc ER<\/strong><\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1eadp h\u1ee3p \u0111\u00f4 th\u1ecb<\/p><\/li>\n\n\n\n<li><p>Li\u00ean k\u1ebft gi\u1eefa c\u00e1c khu\u00f4n vi\u00ean<\/p><\/li>\n\n\n\n<li><p>Li\u00ean k\u1ebft doanh nghi\u1ec7p kho\u1ea3ng c\u00e1ch d\u00e0i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478000.htm\"><strong>ZR Optics<\/strong><\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1eddng x\u01b0\u01a1ng s\u1ed1ng khu v\u1ef1c<\/p><\/li>\n\n\n\n<li><p>C\u00e1c \u0111o\u1ea1n truy\u1ec1n d\u1eabn d\u00e0i \u1edf v\u00f9ng n\u00f4ng th\u00f4n<\/p><\/li>\n\n\n\n<li><p>K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c th\u00e0nh ph\u1ed1<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">ZR optics th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn khi \u0111\u1ed9 d\u00e0i s\u1ee3i quang v\u01b0\u1ee3t qu\u00e1 40 km v\u00e0 vi\u1ec7c m\u1edf r\u1ed9ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng b\u1ecb h\u1ea1n ch\u1ebf.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ER v\u00e0 ZR \u2013 K\u1ebft lu\u1eadn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa ER v\u00e0 ZR n\u1eb1m \u1edf <strong>ng\u00e2n s\u00e1ch quang h\u1ecdc v\u00e0 k\u1ef3 v\u1ecdng tri\u1ec3n khai<\/strong>, ch\u1ee9 kh\u00f4ng ph\u1ea3i b\u01b0\u1edbc s\u00f3ng.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>ER = l\u1edbp chu\u1ea9n h\u00f3a 40 km v\u1edbi c\u00e1c th\u00f4ng s\u1ed1 \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/p><\/li>\n\n\n\n<li><p>ZR = ph\u1ea1m vi m\u1edf r\u1ed9ng c\u00f4ng su\u1ea5t cao (l\u1edbp 80\u2013100 km), th\u01b0\u1eddng do nh\u00e0 cung c\u1ea5p \u0111\u1ecbnh ngh\u0129a trong m\u00f4i tr\u01b0\u1eddng 10G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa ER v\u00e0 ZR \u0111\u00f2i h\u1ecfi t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch li\u00ean k\u1ebft quang h\u1ecdc ch\u00ednh x\u00e1c, \u0111\u00e1nh gi\u00e1 t\u00e1n s\u1eafc v\u00e0 xem x\u00e9t chi\u1ebfn l\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i \u2014 ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n d\u1ef1a v\u00e0o \u01b0\u1edbc t\u00ednh kho\u1ea3ng c\u00e1ch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>Ng\u00e2n s\u00e1ch quang h\u1ecdc v\u00e0 k\u1ef9 thu\u1eadt li\u00ean k\u1ebft cho 100 km<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00e3n \u201c100 km\u201d tr\u00ean m\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">B\u1ed9 thu ph\u00e1t SFP<\/a> kh\u00f4ng <strong>not<\/strong> \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh \u1edf kho\u1ea3ng c\u00e1ch 100 km. Nh\u00e3n n\u00e0y ch\u1ec9 bi\u1ec3u th\u1ecb ph\u1ea1m vi m\u1ee5c ti\u00eau d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n s\u1ee3i quang danh \u0111\u1ecbnh. Kh\u1ea3 thi th\u1ef1c t\u1ebf ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c minh th\u00f4ng qua t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch li\u00ean k\u1ebft quang h\u1ecdc nghi\u00eam ng\u1eb7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf Ethernet \u0111\u01b0\u1eddng d\u00e0i v\u1ec1 b\u1ea3n ch\u1ea5t l\u00e0 b\u00e0i to\u00e1n c\u00e2n b\u1eb1ng c\u00f4ng su\u1ea5t.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1235fd4da8504592a837a3698a36bfcc.jpg\" alt=\"Optical Budget and Link Engineering for 100km\" class=\"wp-image-2681\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1235fd4da8504592a837a3698a36bfcc.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1235fd4da8504592a837a3698a36bfcc-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1235fd4da8504592a837a3698a36bfcc-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1235fd4da8504592a837a3698a36bfcc-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1235fd4da8504592a837a3698a36bfcc-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 \u0110\u1ed9 suy hao s\u1ee3i quang t\u1ea1i 1550 nm<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft b\u1ecb quang h\u1ecdc l\u1edbp 100 km ho\u1ea1t \u0111\u1ed9ng trong c\u1eeda s\u1ed5 1550 nm v\u00ec \u0111\u00e2y l\u00e0 d\u1ea3i b\u01b0\u1edbc s\u00f3ng c\u00f3 \u0111\u1ed9 suy hao th\u1ea5p nh\u1ea5t tr\u00ean s\u1ee3i quang \u0111\u01a1n mode ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u00e1 tr\u1ecb suy hao \u0111i\u1ec3n h\u00ecnh \u0111\u1ed1i v\u1edbi s\u1ee3i OS2 hi\u1ec7n \u0111\u1ea1i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>20\u20130.25 dB\/km @ 1550 nm<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi \u0111o\u1ea1n 100 km:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>20 dB\/km \u2192 t\u1ed5n hao s\u1ee3i 20 dB<\/p><\/li>\n\n\n\n<li><p>25 dB\/km \u2192 t\u1ed5n hao s\u1ee3i 25 dB<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u00e9p t\u00ednh n\u00e0y kh\u00f4ng bao g\u1ed3m t\u1ed5n hao \u0111\u1ea7u n\u1ed1i, m\u1ed1i h\u00e0n v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a l\u00e3o h\u00f3a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngay c\u1ea3 nh\u1eefng sai l\u1ec7ch nh\u1ecf v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng s\u1ee3i c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn kh\u1ea3 thi c\u1ee7a \u0111\u01b0\u1eddng truy\u1ec1n d\u00e0i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 T\u00ednh to\u00e1n t\u1ed5ng t\u1ed5n hao \u0111o\u1ea1n truy\u1ec1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ed5ng t\u1ed5n hao \u0111o\u1ea1n truy\u1ec1n ph\u1ea3i bao g\u1ed3m<strong> <\/strong>t\u1ea5t c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n th\u1ee5 \u0111\u1ed9ng, kh\u00f4ng ch\u1ec9 kho\u1ea3ng c\u00e1ch s\u1ee3i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed5ng t\u1ed5n hao (dB) = T\u1ed5n hao s\u1ee3i + T\u1ed5n hao \u0111\u1ea7u n\u1ed1i + T\u1ed5n hao m\u1ed1i h\u00e0n + T\u1ed5n hao t\u1ee7 \u0111\u1ea5u n\u1ed1i<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3 \u0111\u1ecbnh k\u1ef9 thu\u1eadt \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t c\u1eb7p \u0111\u1ea7u n\u1ed1i: 0.5\u20131.0 dB (t\u00f9y thu\u1ed9c ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 s\u1ea1ch)<\/p><\/li>\n\n\n\n<li><p>M\u1ed1i h\u00e0n fusion: ~0.05\u20130.1 dB\/m\u1ed1i h\u00e0n<\/p><\/li>\n\n\n\n<li><p>T\u1ee7 \u0111\u1ea5u n\u1ed1i \/ khung ph\u00e2n ph\u1ed1i: 0.5\u20131.0 dB<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5 minh h\u1ecda:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>100 km s\u1ee3i @ 0.22 dB\/km \u2192 22 dB<\/p><\/li>\n\n\n\n<li><p>2 c\u1eb7p \u0111\u1ea7u n\u1ed1i \u2192 1.0 dB<\/p><\/li>\n\n\n\n<li><p>4 m\u1ed1i h\u00e0n \u2192 0.4 dB<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed5ng t\u1ed5n hao \u0111o\u1ea1n \u2248 23.4 dB<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u00e1 tr\u1ecb n\u00e0y ph\u1ea3i so s\u00e1nh v\u1edbi ng\u00e2n s\u00e1ch quang h\u1ecdc c\u1ee7a module.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 Ng\u00e2n s\u00e1ch quang h\u1ecdc v\u00e0 bi\u00ean d\u1ef1 ph\u00f2ng s\u1eb5n c\u00f3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u00e2n s\u00e1ch quang h\u1ecdc \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Ng\u00e2n s\u00e1ch quang h\u1ecdc = C\u00f4ng su\u1ea5t ph\u00e1t t\u1ed1i thi\u1ec3u \u2212 \u0110\u1ed9 nh\u1ea1y \u0111\u1ea7u thu<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, vi\u1ec7c x\u00e1c nh\u1eadn k\u1ef9 thu\u1eadt y\u00eau c\u1ea7u t\u00ednh to\u00e1n bi\u00ean d\u1ef1 ph\u00f2ng:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Bi\u00ean d\u1ef1 ph\u00f2ng kh\u1ea3 d\u1ee5ng = C\u00f4ng su\u1ea5t ph\u00e1t \u2212 T\u1ed5ng t\u1ed5n hao \u2212 \u0110\u1ed9 nh\u1ea1y b\u1ed9 thu<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu Bi\u00ean d\u1ef1 ph\u00f2ng kh\u1ea3 d\u1ee5ng \u2264 0 dB, li\u00ean k\u1ebft s\u1ebd th\u1ea5t b\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ea1ng s\u1ea3n xu\u1ea5t, bi\u00ean h\u1ec7 th\u1ed1ng khuy\u1ebfn ngh\u1ecb:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\u2265 3 dB t\u1ed1i thi\u1ec3u<\/strong><\/p><\/li>\n\n\n\n<li><p>5 dB \u0111\u01b0\u1ee3c \u01b0u ti\u00ean \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady tr\u00ean tuy\u1ebfn d\u00e0i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Bi\u00ean n\u00e0y bao g\u1ed3m c\u00e1c y\u1ebfu t\u1ed1 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u00e3o h\u00f3a s\u1ee3i quang<\/p><\/li>\n\n\n\n<li><p>Bi\u1ebfn \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9<\/p><\/li>\n\n\n\n<li><p>Tr\u00f4i l\u1ec7ch th\u00e0nh ph\u1ea7n<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 b\u1ea5t \u0111\u1ecbnh trong \u0111o l\u01b0\u1eddng<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 C\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn t\u00e1n s\u1eafc chromatic<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i b\u01b0\u1edbc s\u00f3ng 1550 nm, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/chromatic-dispersion-cd-in-fiber-optics-signal-impact\/\">t\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9<\/a> h\u1ec7 s\u1ed1 t\u00e1n s\u1eafc chromatic trong s\u1ee3i ti\u00eau chu\u1ea9n G.652 kho\u1ea3ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>~17 ps\/nm\u00b7km<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean qu\u00e3ng \u0111\u01b0\u1eddng 100 km:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>t\u00edch l\u0169y kho\u1ea3ng ~1700 ps\/nm t\u00e1n s\u1eafc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng tr\u1ef1c ti\u1ebfp ph\u00e1t hi\u1ec7n (direct-detect) 10G, dung sai t\u00e1n s\u1eafc tr\u1edf th\u00e0nh r\u00e0ng bu\u1ed9c k\u1ef9 thu\u1eadt. M\u1ed9t s\u1ed1 module quang ZR-class 100 km d\u1ef1a v\u00e0o \u0111\u1ed9 r\u1ed9ng ph\u1ed5 laser ch\u1eb7t h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng t\u00e1n s\u1eafc c\u1ee7a b\u1ed9 thu \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n b\u00f9 t\u00e1n s\u1eafc b\u00ean ngo\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1n s\u1eafc ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c, \u0111\u1eb7c bi\u1ec7t khi v\u01b0\u1ee3t qu\u00e1 80 km.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 V\u00ec sao \u201c100 km\u201d \u2260 \u0110\u1ea3m b\u1ea3o \u0111\u1ea1t 100 km<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng s\u1ed1 kho\u1ea3ng c\u00e1ch ghi tr\u00ean nh\u00e3n gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1ee3i quang t\u1ed5n hao th\u1ea5p (~0,20 dB\/km)<\/p><\/li>\n\n\n\n<li><p>S\u1ed1 l\u01b0\u1ee3ng \u0111\u1ea7u n\u1ed1i t\u1ed1i thi\u1ec3u<\/p><\/li>\n\n\n\n<li><p>T\u00e1n s\u1eafc \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/p><\/li>\n\n\n\n<li><p>Giao di\u1ec7n quang s\u1ea1ch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u ki\u1ec7n th\u1ef1c t\u1ebf th\u01b0\u1eddng kh\u00e1c bi\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476914.htm\">\u201cModule \u201d100 km\u201d<\/a> \u0111\u01b0\u1ee3c tri\u1ec3n khai tr\u00ean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>s\u1ee3i quang c\u00f3 t\u1ed5n hao 0,25 dB\/km<\/p><\/li>\n\n\n\n<li><p>nhi\u1ec1u b\u1ea3ng \u0111\u1ea5u n\u1ed1i (patch panel)<\/p><\/li>\n\n\n\n<li><p>m\u1ed1i n\u1ed1i gi\u00e0 h\u00f3a<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">c\u00f3 th\u1ec3 ch\u1ec9 h\u1ed7 tr\u1ee3 \u0111\u00e1ng tin c\u1eady \u1edf kho\u1ea3ng c\u00e1ch 80\u201390 km.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1ee3c l\u1ea1i, s\u1ee3i quang ch\u1ea5t l\u01b0\u1ee3ng cao, t\u1ed5n hao c\u1ef1c th\u1ea5p c\u00f3 th\u1ec3 cho ph\u00e9p ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u01b0\u1ee3t m\u1ee9c ghi tr\u00ean nh\u00e3n \u2014 nh\u01b0ng \u0111i\u1ec1u n\u00e0y kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c m\u1eb7c \u0111\u1ecbnh m\u00e0 kh\u00f4ng th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b6 Ghi ch\u00fa v\u1ec1 SFP 100 km:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kho\u1ea3ng c\u00e1ch kh\u00f4ng ph\u1ea3i l\u00e0 bi\u1ebfn thi\u1ebft k\u1ebf \u2014 t\u1ed5n hao quang h\u1ecdc v\u00e0 t\u00e1n s\u1eafc m\u1edbi l\u00e0 c\u00e1c y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ecdi tri\u1ec3n khai SFP 100 km:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>T\u00ednh to\u00e1n t\u1ed5ng t\u1ed5n hao to\u00e0n tuy\u1ebfn.<\/p><\/li>\n\n\n\n<li><p>So s\u00e1nh v\u1edbi ng\u00e2n s\u00e1ch quang h\u1ecdc.<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o bi\u00ean h\u1ec7 th\u1ed1ng \u2265 3 dB.<\/p><\/li>\n\n\n\n<li><p>X\u00e1c th\u1ef1c dung sai t\u00e1n s\u1eafc.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1ec9 sau khi ho\u00e0n t\u1ea5t c\u00e1c b\u01b0\u1edbc tr\u00ean, li\u00ean k\u1ebft 100 km m\u1edbi \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f3 c\u01a1 s\u1edf k\u1ef9 thu\u1eadt \u0111\u1ea7y \u0111\u1ee7.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>Li\u1ec7u SFP 100 km c\u00f3 y\u00eau c\u1ea7u khu\u1ebfch \u0111\u1ea1i quang hay kh\u00f4ng?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 thu-ph\u00e1t SFP 100 km th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi ng\u00e2n s\u00e1ch quang h\u1ecdc cao (th\u01b0\u1eddng thu\u1ed9c l\u1edbp ~28\u201332 dB \u0111\u1ed1i v\u1edbi module lo\u1ea1i ZR). Vi\u1ec7c c\u00f3 c\u1ea7n khu\u1ebfch \u0111\u1ea1i hay kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ed5ng t\u1ed5n hao to\u00e0n tuy\u1ebfn, t\u00e1n s\u1eafc v\u00e0 bi\u00ean h\u1ec7 th\u1ed1ng \u2014 ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n d\u1ef1a v\u00e0o kho\u1ea3ng c\u00e1ch.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1903ab5b2a7140b280ae8673d7983e58.jpg\" alt=\"Does a 100km SFP Require Optical Amplification?\" class=\"wp-image-2682\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1903ab5b2a7140b280ae8673d7983e58.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1903ab5b2a7140b280ae8673d7983e58-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1903ab5b2a7140b280ae8673d7983e58-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1903ab5b2a7140b280ae8673d7983e58-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1903ab5b2a7140b280ae8673d7983e58-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Khi khu\u1ebfch \u0111\u1ea1i c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n thi\u1ebft<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111i\u1ec1u ki\u1ec7n ki\u1ec3m so\u00e1t t\u1ed1t, m\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478078.htm\">SFP 100 km<\/a> c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n khu\u1ebfch \u0111\u1ea1i b\u00ean ngo\u00e0i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i \u0111i\u1ec3n h\u00ecnh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u1ea5t l\u01b0\u1ee3ng cao <strong>S\u1ee3i quang ch\u1ebf \u0111\u1ed9 \u0111\u01a1n OS2<\/strong><\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 suy hao g\u1ea7n ~0,20 dB\/km @1550 nm<\/p><\/li>\n\n\n\n<li><p>T\u1ed5n hao \u0111\u1ea7u n\u1ed1i v\u00e0 h\u00e0n n\u1ed1i t\u1ed1i thi\u1ec3u<\/p><\/li>\n\n\n\n<li><p>Giao di\u1ec7n quang s\u1ea1ch<\/p><\/li>\n\n\n\n<li><p>D\u1ef1 ph\u00f2ng h\u1ec7 th\u1ed1ng \u0111\u1ea7y \u0111\u1ee7 (\u22653 dB)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00ed d\u1ee5 v\u1ec1 t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch li\u00ean k\u1ebft (100 km)<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>M\u1ee5c<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>T\u00ednh to\u00e1n<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>K\u1ebft qu\u1ea3<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed5n hao s\u1ee3i quang<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100 km \u00d7 0,20 dB\/km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>20 dB<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed5n hao \u0111\u1ea7u n\u1ed1i + h\u00e0n n\u1ed1i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u01af\u1edbc t\u00ednh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2 dB<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u1ed5ng t\u1ed5n hao li\u00ean k\u1ebft<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>20 dB + 2 dB<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>22 dB<\/strong><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ng\u00e2n s\u00e1ch quang c\u1ee7a module<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SFP 100 km \u0111i\u1ec3n h\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>30 dB<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>D\u1ef1 ph\u00f2ng kh\u1ea3 d\u1ee5ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>30 dB \u2212 22 dB<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>8 dB<\/strong><\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p nh\u01b0 v\u1eady, ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec3m-\u0111i\u1ec3m tr\u1ef1c ti\u1ebfp c\u00f3 th\u1ec3 kh\u1ea3 thi m\u00e0 kh\u00f4ng c\u1ea7n khu\u1ebfch \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y gi\u1ea3 \u0111\u1ecbnh \u0111i\u1ec1u ki\u1ec7n s\u1ee3i quang l\u00e0 t\u1ed1i \u01b0u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi n\u00e0o khu\u1ebfch \u0111\u1ea1i quang th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai \u0111\u01b0\u1eddng d\u00e0i th\u1ef1c t\u1ebf, khu\u1ebfch \u0111\u1ea1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 suy hao s\u1ee3i cao h\u01a1n (~0,23\u20130,25 dB\/km)<\/p><\/li>\n\n\n\n<li><p>nhi\u1ec1u b\u1ea3ng \u0111\u1ea5u n\u1ed1i (patch panel)<\/p><\/li>\n\n\n\n<li><p>L\u00e3o h\u00f3a s\u1ee3i quang<\/p><\/li>\n\n\n\n<li><p>C\u00e1c th\u00e0nh ph\u1ea7n kho\u1ea3ng c\u00e1ch b\u1ed5 sung (ODF, chuy\u1ec3n m\u1ea1ch b\u1ea3o v\u1ec7)<\/p><\/li>\n\n\n\n<li><p>C\u00e1c \u1ea3nh h\u01b0\u1edfng do t\u00e1n s\u1eafc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khu\u1ebfch \u0111\u1ea1i c\u1ea3i thi\u1ec7n c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u nh\u1eadn \u0111\u01b0\u1ee3c v\u00e0 t\u0103ng d\u1ef1 ph\u00f2ng v\u1eadn h\u00e0nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c lo\u1ea1i b\u1ed9 khu\u1ebfch \u0111\u1ea1i ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">B\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u0103ng c\u01b0\u1eddng (Booster Amplifier)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t ngay sau b\u1ed9 ph\u00e1t<\/p><\/li>\n\n\n\n<li><p>T\u0103ng c\u00f4ng su\u1ea5t ph\u00e1t v\u00e0o s\u1ee3i quang<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u00e1c kho\u1ea3ng c\u00e1ch d\u00e0i \u0111\u00f2i h\u1ecfi t\u00edn hi\u1ec7u ban \u0111\u1ea7u m\u1ea1nh h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">B\u1ed9 khu\u1ebfch \u0111\u1ea1i ti\u1ec1n khu\u1ebfch \u0111\u1ea1i (Pre-Amplifier)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u01b0\u1edbc b\u1ed9 thu<\/p><\/li>\n\n\n\n<li><p>C\u1ea3i thi\u1ec7n \u0111\u1ed9 nh\u1ea1y hi\u1ec7u d\u1ee5ng c\u1ee7a b\u1ed9 thu<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng khi t\u00edn hi\u1ec7u \u0111\u1ebfn g\u1ea7n ng\u01b0\u1ee1ng \u0111\u1ed9 nh\u1ea1y<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">EDFA (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/erbium-doped-fiber-amplifier-optical-networks\/\">B\u1ed9 khu\u1ebfch \u0111\u1ea1i s\u1ee3i pha t\u1ea1p erbium (Erbium-Doped Fiber Amplifier)<\/a>)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng ngh\u1ec7 khu\u1ebfch \u0111\u1ea1i \u0111\u01b0\u1eddng d\u00e0i ph\u1ed5 bi\u1ebfn nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u c\u1eb7p m\u00f4-\u0111un c\u00f3 b\u01b0\u1edbc s\u00f3ng b\u1ed5 sung<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ho\u1ea1t \u0111\u1ed9ng trong d\u1ea3i <strong>C-band (kho\u1ea3ng 1530\u20131565 nm)<\/strong><\/p><\/li>\n\n\n\n<li><p>T\u1ed1i \u01b0u cho v\u00f9ng b\u01b0\u1edbc s\u00f3ng 1550 nm<\/p><\/li>\n\n\n\n<li><p>Cung c\u1ea5p \u0111\u1ed9 khu\u1ebfch \u0111\u1ea1i cao v\u1edbi h\u1ec7 s\u1ed1 nhi\u1ec5u t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p<\/p><\/li>\n\n\n\n<li><p>T\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng DWDM<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u00e1c module SFP 100 km ho\u1ea1t \u0111\u1ed9ng g\u1ea7n 1550 nm, n\u00ean ch\u00fang ph\u00f9 h\u1ee3p v\u1edbi c\u1eeda s\u1ed5 l\u00e0m vi\u1ec7c c\u1ee7a EDFA.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">C\u00e1c y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt c\u1ea7n c\u00e2n nh\u1eafc khi s\u1eed d\u1ee5ng khu\u1ebfch \u0111\u1ea1i<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 khu\u1ebfch \u0111\u1ea1i \u0111\u01b0a th\u00eam c\u00e1c bi\u1ebfn s\u1ed1 thi\u1ebft k\u1ebf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 khu\u1ebfch \u0111\u1ea1i ph\u1ea3i \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng c\u1ea9n th\u1eadn<\/p><\/li>\n\n\n\n<li><p>C\u00f4ng su\u1ea5t d\u01b0 th\u1eeba c\u00f3 th\u1ec3 g\u00e2y qu\u00e1 t\u1ea3i b\u1ed9 thu<\/p><\/li>\n\n\n\n<li><p>H\u1ec7 s\u1ed1 nhi\u1ec5u c\u1ee7a b\u1ed9 khu\u1ebfch \u0111\u1ea1i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ef7 s\u1ed1 t\u00edn hi\u1ec7u tr\u00ean nhi\u1ec5u (SNR)<\/p><\/li>\n\n\n\n<li><p>C\u00f3 th\u1ec3 c\u1ea7n c\u00e2n b\u1eb1ng c\u00f4ng su\u1ea5t trong c\u00e1c h\u1ec7 th\u1ed1ng nhi\u1ec1u kho\u1ea3ng c\u00e1ch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c khu\u1ebfch \u0111\u1ea1i kh\u00f4ng \u0111\u00fang c\u00e1ch c\u00f3 th\u1ec3 l\u00e0m suy gi\u1ea3m, thay v\u00ec c\u1ea3i thi\u1ec7n, hi\u1ec7u n\u0103ng li\u00ean k\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">H\u01b0\u1edbng d\u1eabn tri\u1ec3n khai th\u1ef1c t\u1ebf cho c\u00e1c module SFP 100 km<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khu\u1ebfch \u0111\u1ea1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c xem x\u00e9t khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed5ng t\u1ed5n hao kho\u1ea3ng c\u00e1ch ti\u1ebfp c\u1eadn ho\u1eb7c v\u01b0\u1ee3t qu\u00e1 ng\u00e2n s\u00e1ch quang<\/p><\/li>\n\n\n\n<li><p>D\u1ef1 ph\u00f2ng h\u1ec7 th\u1ed1ng &lt;3 dB<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u \u0111\u1ed9 tin c\u1eady m\u1ea1ng cao<\/p><\/li>\n\n\n\n<li><p>\u0110i\u1ec1u ki\u1ec7n s\u1ee3i quang ch\u01b0a ch\u1eafc ch\u1eafn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong nhi\u1ec1u kho\u1ea3ng c\u00e1ch t\u1eeb m\u1ea1ng \u0111\u00f4 th\u1ecb \u0111\u1ebfn v\u00f9ng ngo\u1ea1i \u00f4, \u00edt nh\u1ea5t m\u1ed9t giai \u0111o\u1ea1n khu\u1ebfch \u0111\u1ea1i \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o v\u00ec l\u00fd do an to\u00e0n k\u1ef9 thu\u1eadt\u2014ngay c\u1ea3 khi c\u00e1c ph\u00e9p t\u00ednh s\u01a1 b\u1ed9 cho th\u1ea5y n\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng th\u1ef1c s\u1ef1 b\u1eaft bu\u1ed9c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>B\u01b0\u1edbc s\u00f3ng v\u00e0 lo\u1ea1i laser \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c module 100 km<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP t\u1ea7m xa 100 km \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u00e1c y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t v\u1ec1 b\u01b0\u1edbc s\u00f3ng v\u00e0 laser. \u1ede ph\u00e2n kh\u00fac kho\u1ea3ng c\u00e1ch n\u00e0y, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh b\u01b0\u1edbc s\u00f3ng, \u0111\u1ed9 tinh khi\u1ebft quang ph\u1ed5 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng t\u00e1n s\u1eafc tr\u1edf th\u00e0nh nh\u1eefng y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt then ch\u1ed1t.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40d1e8ab5bdd43f69277ee07c7efa479.jpg\" alt=\"100km SFP Modules Wavelength and Laser Type\" class=\"wp-image-2683\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40d1e8ab5bdd43f69277ee07c7efa479.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40d1e8ab5bdd43f69277ee07c7efa479-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40d1e8ab5bdd43f69277ee07c7efa479-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40d1e8ab5bdd43f69277ee07c7efa479-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40d1e8ab5bdd43f69277ee07c7efa479-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc s\u00f3ng ho\u1ea1t \u0111\u1ed9ng: v\u00f9ng 1550 nm<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module 100 km ho\u1ea1t \u0111\u1ed9ng trong c\u1eeda s\u1ed5 suy hao th\u1ea5p 1550 nm c\u1ee7a s\u1ee3i quang \u0111\u01a1n mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nguy\u00ean nh\u00e2n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 suy hao s\u1ee3i th\u1ea5p nh\u1ea5t (~0,20\u20130,25 dB\/km \u0111\u1ed1i v\u1edbi OS2)<\/p><\/li>\n\n\n\n<li><p>Ph\u00f9 h\u1ee3p v\u1edbi quang h\u1ecdc <strong>D\u1ea3i C (1530\u20131565 nm)<\/strong><\/p><\/li>\n\n\n\n<li><p>T\u01b0\u01a1ng th\u00edch v\u1edbi khu\u1ebfch \u0111\u1ea1i EDFA<\/p><\/li>\n\n\n\n<li><p>Hi\u1ec7u su\u1ea5t t\u00e1n s\u1eafc \u1edf kho\u1ea3ng c\u00e1ch xa t\u1ed1t h\u01a1n so v\u1edbi 1310 nm \u1edf c\u00e1c kho\u1ea3ng c\u00e1ch d\u00e0i 10G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 1310 nm ph\u00f9 h\u1ee3p cho c\u00e1c thi\u1ebft b\u1ecb quang t\u1ea7m xa ng\u1eafn h\u01a1n (v\u00ed d\u1ee5: c\u00e1c ph\u00e2n kh\u00fac 10 km \/ 20 km), nh\u01b0ng n\u00f3 kh\u00f4ng kh\u1ea3 thi cho c\u00e1c kho\u1ea3ng c\u00e1ch Ethernet tr\u1ef1c ti\u1ebfp 100 km do gi\u1edbi h\u1ea1n v\u1ec1 suy hao v\u00e0 t\u00e1n s\u1eafc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, c\u00e1c module ph\u00e2n kh\u00fac 100 km <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476871.htm\">C\u00e1c m\u00f4-\u0111un SFP<\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf xung quanh c\u1eeda s\u1ed5 1550 nm.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lo\u1ea1i laser: laser ph\u1ea3n h\u1ed3i ph\u00e2n b\u1ed1 (DFB)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP 100 km s\u1eed d\u1ee5ng <strong>laser ph\u1ea3n h\u1ed3i ph\u00e2n b\u1ed1 (DFB)<\/strong>, ch\u1ee9 kh\u00f4ng ph\u1ea3i <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/overview-of-vcsel\/\">Laser VCSEL.<\/a> c\u00f4ng ngh\u1ec7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/dfb-laser-definition\/\">laser DFB<\/a>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 r\u1ed9ng ph\u1ed5 quang h\u1ecdc h\u1eb9p<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea7u ra b\u01b0\u1edbc s\u00f3ng \u1ed5n \u0111\u1ecbnh<\/p><\/li>\n\n\n\n<li><p>C\u00f4ng su\u1ea5t quang \u0111\u1ea7u ra cao<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng t\u00e1n s\u1eafc t\u1ed1t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 r\u1ed9ng ph\u1ed5 h\u1eb9p l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu v\u00ec t\u00e1n s\u1eafc s\u1eafc m\u00e0u t\u00edch l\u0169y \u0111\u00e1ng k\u1ec3 tr\u00ean qu\u00e3ng \u0111\u01b0\u1eddng 100 km (~17 ps\/nm\u00b7km trong s\u1ee3i G.652). C\u00e1c ngu\u1ed3n ph\u1ed5 r\u1ed9ng h\u01a1n s\u1ebd g\u1eb7p hi\u1ec7n t\u01b0\u1ee3ng gi\u00e3n n\u1edf xung qu\u00e1 m\u1ee9c \u1edf kho\u1ea3ng c\u00e1ch n\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tu\u00e2n th\u1ee7 l\u01b0\u1edbi DWDM (th\u01b0\u1eddng g\u1eb7p trong c\u00e1c thi\u1ebft b\u1ecb quang l\u1edbp ZR)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u module 100 km\u2014\u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c tri\u1ec3n khai l\u1edbp ZR\u2014\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi l\u01b0\u1edbi k\u00eanh DWDM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c \u0111i\u1ec3m \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u01b0\u1edbc s\u00f3ng c\u1ed1 \u0111\u1ecbnh trong d\u1ea3i C<\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch k\u00eanh theo ti\u00eau chu\u1ea9n ITU-T (v\u00ed d\u1ee5: l\u01b0\u1edbi 100 GHz)<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 dung sai b\u01b0\u1edbc s\u00f3ng ch\u1eb7t ch\u1ebd<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tu\u00e2n th\u1ee7 DWDM cho ph\u00e9p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Truy\u1ec1n d\u1eabn \u0111a k\u00eanh \u1edf kho\u1ea3ng c\u00e1ch xa<\/p><\/li>\n\n\n\n<li><p>T\u01b0\u01a1ng th\u00edch v\u1edbi b\u1ed9 khu\u1ebfch \u0111\u1ea1i quang<\/p><\/li>\n\n\n\n<li><p>T\u00edch h\u1ee3p v\u00e0o c\u00e1c h\u1ec7 th\u1ed1ng x\u01b0\u01a1ng s\u1ed1ng \u0111\u00f4 th\u1ecb ho\u1eb7c v\u00f9ng ngo\u1ea1i \u00f4<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c module SFP 100 km \u0111\u1ec1u l\u00e0 module <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-dwdm-explaining-dense-wavelength-division-multiplexing\/\">DWDM<\/a> c\u1eafm r\u1eddi \u0111\u1ea7y \u0111\u1ee7\u2014m\u1ed9t s\u1ed1 ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng c\u1ed1 \u0111\u1ecbnh 1550 nm m\u00e0 kh\u00f4ng \u0111i\u1ec1u ch\u1ec9nh theo l\u01b0\u1edbi \u0111a k\u00eanh. Vi\u1ec7c ki\u1ec3m tra b\u1ea3ng d\u1eef li\u1ec7u l\u00e0 b\u1eaft bu\u1ed9c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 r\u1ed9ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh quang ph\u1ed5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi kho\u1ea3ng c\u00e1ch 100 km:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 r\u1ed9ng ph\u1ed5 laser ph\u1ea3i h\u1eb9p<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 tr\u00f4i b\u01b0\u1edbc s\u00f3ng ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd<\/p><\/li>\n\n\n\n<li><p>C\u1ea7n \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 r\u1ed9ng ph\u1ed5 qu\u00e1 l\u1edbn l\u00e0m t\u0103ng t\u1ed5n th\u1ea5t do t\u00e1n s\u1eafc v\u00e0 l\u00e0m gi\u1ea3m \u0111\u1ed9 m\u1edf m\u1eaft t\u1ea1i b\u1ed9 thu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Laser DFB \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 duy tr\u00ec hi\u1ec7u n\u0103ng d\u01b0\u1edbi c\u00e1c r\u00e0ng bu\u1ed9c n\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c module 100 km KH\u00d4NG s\u1eed d\u1ee5ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 tr\u00e1nh nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u274c C\u00e1c module 100 km KH\u00d4NG <strong>not<\/strong> s\u1eed d\u1ee5ng b\u01b0\u1edbc s\u00f3ng 850 nm (b\u01b0\u1edbc s\u00f3ng \u0111a mode t\u1ea7m ng\u1eafn)<\/p><\/li>\n\n\n\n<li><p>\u274c C\u00e1c module 100 km KH\u00d4NG <strong>not<\/strong> s\u1eed d\u1ee5ng laser VCSEL<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng ngh\u1ec7 VCSEL \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Li\u00ean k\u1ebft \u0111a mode t\u1ea7m ng\u1eafn<\/p><\/li>\n\n\n\n<li><p>Ho\u1ea1t \u0111\u1ed9ng \u1edf b\u01b0\u1edbc s\u00f3ng 850 nm<\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch trung t\u00e2m d\u1eef li\u1ec7u (v\u00e0i ch\u1ee5c \u0111\u1ebfn v\u00e0i tr\u0103m m\u00e9t)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng ngh\u1ec7 n\u00e0y KH\u00d4NG ph\u00f9 h\u1ee3p v\u1edbi truy\u1ec1n d\u1eabn \u0111\u01a1n mode 100 km.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00f3m t\u1eaft b\u01b0\u1edbc s\u00f3ng v\u00e0 laser c\u1ee7a SFP 100 km<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478080.htm\">SFP 100 km<\/a> th\u01b0\u1eddng c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ho\u1ea1t \u0111\u1ed9ng trong c\u1eeda s\u1ed5 d\u1ea3i C \u1edf 1550 nm<\/p><\/li>\n\n\n\n<li><p>Laser DFB c\u00f4ng su\u1ea5t cao, \u0111\u1ed9 r\u1ed9ng v\u1ea1ch h\u1eb9p<\/p><\/li>\n\n\n\n<li><p>Th\u01b0\u1eddng tu\u00e2n theo l\u01b0\u1edbi DWDM<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh b\u01b0\u1edbc s\u00f3ng ch\u1eb7t ch\u1ebd nh\u1eb1m ki\u1ec3m so\u00e1t t\u00e1n s\u1eafc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ch\u00ednh x\u00e1c b\u01b0\u1edbc s\u00f3ng v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng laser l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u n\u0103ng \u0111\u01b0\u1eddng d\u00e0i. Kh\u00f4ng c\u00f3 \u0111\u1ea7u ra ph\u1ed5 h\u1eb9p v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh \u1edf 1550 nm, vi\u1ec7c truy\u1ec1n d\u1eabn 100 km v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt l\u00e0 kh\u00f4ng kh\u1ea3 thi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>Y\u00eau c\u1ea7u lo\u1ea1i s\u1ee3i quang cho b\u1ed9 thu ph\u00e1t 100 km<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478077.htm\">B\u1ed9 thu ph\u00e1t SFP \u0111\u01b0\u1eddng d\u00e0i<\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho ho\u1ea1t \u0111\u1ed9ng 100 km \u0111\u1eb7t ra y\u00eau c\u1ea7u nghi\u00eam ng\u1eb7t v\u1ec1 lo\u1ea1i s\u1ee3i quang. Vi\u1ec7c l\u1ef1a ch\u1ecdn s\u1ee3i quang ph\u00f9 h\u1ee3p l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c ng\u00e2n s\u00e1ch quang h\u1ecdc \u0111\u00e3 n\u00eau, \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u v\u00e0 hi\u1ec7u n\u0103ng li\u00ean k\u1ebft \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7d0c3c2fa2ca4de3a9a21a301c2036ee.jpg\" alt=\"100km Transceiver Fiber Type Requirements\" class=\"wp-image-2684\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7d0c3c2fa2ca4de3a9a21a301c2036ee.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7d0c3c2fa2ca4de3a9a21a301c2036ee-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7d0c3c2fa2ca4de3a9a21a301c2036ee-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7d0c3c2fa2ca4de3a9a21a301c2036ee-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7d0c3c2fa2ca4de3a9a21a301c2036ee-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u2605 S\u1ee3i quang \u0111\u01a1n mode (OS2)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP 100 km \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho <strong>s\u1ee3i quang \u0111\u01a1n mode<\/strong> (SMF).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111i\u1ec3m ch\u00ednh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>OS2<\/strong> l\u00e0 ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn nh\u1ea5t cho tri\u1ec3n khai \u0111\u01b0\u1eddng d\u00e0i tr\u00ean \u0111\u1ea5t li\u1ec1n.<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1eddng k\u00ednh l\u00f5i: ~9 \u00b5m<\/p><\/li>\n\n\n\n<li><p>\u0110\u01b0\u1eddng k\u00ednh v\u1ecf b\u1ecdc: 125 \u00b5m<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 nh\u1ea1y th\u1ea5p v\u1edbi u\u1ed1n cong v\u0129 m\u00f4 v\u00e0 vi m\u00f4<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111\u01a1n mode \u0111\u1ea3m b\u1ea3o t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9 t\u1ed1i thi\u1ec3u \u2014 \u0111i\u1ec1u ki\u1ec7n thi\u1ebft y\u1ebfu cho c\u00e1c kho\u1ea3ng c\u00e1ch d\u00e0i, n\u01a1i th\u1eadm ch\u00ed s\u1ef1 gi\u00e3n n\u1edf xung nh\u1ecf c\u0169ng c\u00f3 th\u1ec3 l\u00e0m suy gi\u1ea3m nghi\u00eam tr\u1ecdng t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2605 S\u1ee3i quang suy hao th\u1ea5p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 h\u1ed7 tr\u1ee3 li\u00ean k\u1ebft 100 km m\u00e0 kh\u00f4ng c\u1ea7n khu\u1ebfch \u0111\u1ea1i qu\u00e1 m\u1ee9c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/attenuation-in-optical-transceiver-management-and-solutions\/\" target=\"_blank\" rel=\"\">M\u1ee9c suy hao<\/a> suy hao ph\u1ea3i <strong>\u22640,25 dB\/km \u1edf 1550 nm<\/strong><\/p><\/li>\n\n\n\n<li><p>S\u1ee3i OS2 th\u01b0\u1eddng \u0111\u1ea1t m\u1ee9c <strong>0,20\u20130,25 dB\/km<\/strong>, t\u00f9y thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng l\u1eafp \u0111\u1eb7t<\/p><\/li>\n\n\n\n<li><p>T\u1ed5n hao t\u1ea1i \u0111\u1ea7u n\u1ed1i v\u00e0 m\u1ed1i h\u00e0n ph\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh v\u00e0o ph\u00e9p t\u00ednh ng\u00e2n s\u00e1ch quang h\u1ecdc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c v\u01b0\u1ee3t qu\u00e1 ng\u00e2n s\u00e1ch suy hao l\u00e0m gi\u1ea3m d\u1ef1 ph\u00f2ng h\u1ec7 th\u1ed1ng v\u00e0 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u khu\u1ebfch \u0111\u1ea1i b\u1ed5 sung.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2605 \u0110\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n ITU-T G.652.D<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 thu ph\u00e1t SFP 100 km y\u00eau c\u1ea7u s\u1ee3i quang \u0111\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n <strong>G.652.D<\/strong> :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1i \u01b0u cho truy\u1ec1n d\u1eabn \u0111\u01a1n mode \u0111\u01b0\u1eddng d\u00e0i<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 t\u00e1n s\u1eafc s\u1eafc th\u00e1i th\u1ea5p \u1edf c\u1eeda s\u1ed5 1550 nm (~17 ps\/nm\u00b7km)<\/p><\/li>\n\n\n\n<li><p>Gi\u1ea3m <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/polarization-mode-dispersion-in-fiber-optics\/\" target=\"_blank\" rel=\"\">t\u00e1n s\u1eafc ch\u1ebf \u0111\u1ed9 ph\u00e2n c\u1ef1c<\/a> (PMD)<\/p><\/li>\n\n\n\n<li><p>T\u01b0\u01a1ng th\u00edch v\u1edbi khu\u1ebfch \u0111\u1ea1i EDFA<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c s\u1ee3i G.652.D \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i trong m\u1ea1ng l\u00f5i \u0111\u00f4 th\u1ecb v\u00e0 v\u00f9ng, \u0111\u1ed3ng th\u1eddi l\u00e0 l\u1ef1a ch\u1ecdn m\u1eb7c \u0111\u1ecbnh cho c\u00e1c li\u00ean k\u1ebft \u0111\u01b0\u1eddng d\u00e0i \u0111\u1ed9 tin c\u1eady cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2605 C\u00e1c y\u1ebfu t\u1ed1 li\u00ean quan \u0111\u1ebfn t\u00e1n s\u1eafc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ngay c\u1ea3 v\u1edbi s\u1ee3i OS2\/G.652.D, t\u00e1n s\u1eafc s\u1eafc th\u00e1i v\u1eabn t\u00edch l\u0169y tr\u00ean kho\u1ea3ng c\u00e1ch 100 km:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Ethernet 10G:<\/strong> \u0110\u1ed9 ch\u1ecbu \u0111\u1ef1ng t\u00e1n s\u1eafc \u1edf m\u1ee9c trung b\u00ecnh, th\u01b0\u1eddng c\u00f3 th\u1ec3 qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c m\u00e0 kh\u00f4ng c\u1ea7n b\u00f9 tr\u1eeb<\/p><\/li>\n\n\n\n<li><p><strong>Li\u00ean k\u1ebft 25G\/100G:<\/strong> T\u00e1n s\u1eafc c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 gi\u1edbi h\u1ea1n; c\u00f3 th\u1ec3 c\u1ea7n c\u00e1c module b\u00f9 tr\u1eeb tr\u01b0\u1edbc ho\u1eb7c sau<\/p><\/li>\n\n\n\n<li><p>Laser DFB c\u00f3 \u0111\u1ed9 r\u1ed9ng v\u1ea1ch h\u1eb9p l\u00e0m gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng gi\u00e3n xung<\/p><\/li>\n\n\n\n<li><p>Vi\u1ec7c tri\u1ec3n khai DWDM c\u00e0ng nh\u1ea5n m\u1ea1nh y\u00eau c\u1ea7u \u1ed5n \u0111\u1ecbnh b\u01b0\u1edbc s\u00f3ng \u0111\u1ec3 tr\u00e1nh nhi\u1ec5u ch\u00e9o gi\u1eefa c\u00e1c k\u00eanh<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady c\u1ee7a b\u1ed9 thu ph\u00e1t SFP 100 km:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>S\u1eed d\u1ee5ng <strong>S\u1ee3i quang ch\u1ebf \u0111\u1ed9 \u0111\u01a1n OS2<\/strong><\/p><\/li>\n\n\n\n<li><p>Duy tr\u00ec <strong>\u0111\u1ed9 suy hao th\u1ea5p \u22640,25 dB\/km<\/strong><\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o <strong>\u0110\u00e1p \u1ee9ng ti\u00eau chu\u1ea9n G.652.D<\/strong> \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u00e1n s\u1eafc v\u00e0 PMD<\/p><\/li>\n\n\n\n<li><p>C\u00e2n nh\u1eafc \u0111\u1ebfn <strong>t\u1ed5n hao t\u1ea1i \u0111\u1ea7u n\u1ed1i\/v\u1ebft n\u1ed1i h\u00e0n<\/strong> trong ng\u00e2n s\u00e1ch quang h\u1ecdc<\/p><\/li>\n\n\n\n<li><p>X\u00e1c minh <strong>d\u1ef1 ph\u00f2ng t\u00e1n s\u1eafc<\/strong> d\u1ef1a tr\u00ean t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u v\u00e0 thi\u1ebft k\u1ebf li\u00ean k\u1ebft<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 s\u1ee3i quang n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu; b\u1ea5t k\u1ef3 sai l\u1ec7ch n\u00e0o c\u0169ng l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng suy gi\u1ea3m t\u00edn hi\u1ec7u, m\u1ea5t d\u1ef1 ph\u00f2ng quang h\u1ecdc ho\u1eb7c c\u1ea7n khu\u1ebfch \u0111\u1ea1i b\u1ed5 sung.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>Khi n\u00e0o n\u00ean ch\u1ecdn b\u1ed9 thu ph\u00e1t SFP 100 km so v\u1edbi module DWDM \u0111\u1ed3ng pha<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn module quang ph\u00f9 h\u1ee3p cho truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i \u0111\u00f2i h\u1ecfi \u0111\u00e1nh gi\u00e1 c\u1ea9n th\u1eadn c\u00e1c y\u1ebfu t\u1ed1 <strong>t\u1ea7m xa, t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u, \u0111\u1ed9 ph\u1ee9c t\u1ea1p m\u1ea1ng v\u00e0 chi ph\u00ed<\/strong>. \u0110\u1ed1i v\u1edbi c\u00e1c \u0111o\u1ea1n truy\u1ec1n kho\u1ea3ng 100 km, k\u1ef9 s\u01b0 m\u1ea1ng th\u01b0\u1eddng so s\u00e1nh c\u00e1c module SFP\/ZR-class 100 km v\u1edbi c\u00e1c module DWDM \u0111\u1ed3ng pha 100G ho\u1eb7c cao h\u01a1n.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af3b0baf9ff04c22a6a4f8aed2e5fbd8.jpg\" alt=\" 100km SFP vs. DWDM Coherent Modules\" class=\"wp-image-2685\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af3b0baf9ff04c22a6a4f8aed2e5fbd8.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af3b0baf9ff04c22a6a4f8aed2e5fbd8-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af3b0baf9ff04c22a6a4f8aed2e5fbd8-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af3b0baf9ff04c22a6a4f8aed2e5fbd8-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/af3b0baf9ff04c22a6a4f8aed2e5fbd8-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">SFP ZR-Class 10G so v\u1edbi module DWDM \u0111\u1ed3ng pha 100G<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Tham s\u1ed1<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP 100 km (lo\u1ea1i ZR)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Module DWDM \u0111\u1ed3ng pha 100G<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>25Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100G+<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Quang h\u1ecdc song song (4 k\u00eanh 10G)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u00e1t hi\u1ec7n tr\u1ef1c ti\u1ebfp<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u00e1t hi\u1ec7n \u0111\u1ed3ng pha<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>10km, 20km, 40km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~100 km (OS2, 1550 nm)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Tr\u00ean 100 km (k\u00e8m m\u00e3 h\u00f3a s\u1eeda l\u1ed7i ti\u1ebfn tr\u00ecnh \u2013 FEC)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Khu\u1ebfch \u0111\u1ea1i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>EDFA t\u00f9y ch\u1ecdn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u01b0\u1eddng b\u1eaft bu\u1ed9c (EDFA + <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/roadm-reconfigurable-optical-add-drop-multiplexer-guide\/\">B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn quang c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh l\u1ea1i (ROADMs)<\/a>)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 ch\u1ecbu \u0111\u1ef1ng t\u00e1n s\u1eafc<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung b\u00ecnh (laser DFB \u0111\u1ed9 r\u1ed9ng v\u1ea1ch h\u1eb9p)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao (b\u00f9 tr\u1eeb b\u1eb1ng DSP)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao (DSP \u0111\u1ed3ng pha, c\u0103n ch\u1ec9nh l\u01b0\u1edbi t\u1ea7n s\u1ed1, c\u1ea5p ph\u00e1t m\u1ea1ng)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Cost<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Lower<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n \u0111\u00e1ng k\u1ec3<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u1ec7 qu\u1ea3:<\/strong> C\u00e1c m\u00f4-\u0111un ZR-class 10G r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c li\u00ean k\u1ebft \u0111i\u1ec3m-\u0111i\u1ec3m \u0111\u01a1n gi\u1ea3n, trong khi DWDM \u0111\u1ed3ng pha th\u00edch h\u1ee3p cho c\u00e1c m\u1ea1ng x\u01b0\u01a1ng s\u1ed1ng c\u00f3 dung l\u01b0\u1ee3ng cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c y\u1ebfu t\u1ed1 chi ph\u00ed<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>C\u00e1c m\u00f4-\u0111un SFP\/ZR 100 km:<\/strong> Chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u (CAPEX) th\u1ea5p h\u01a1n v\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh (OPEX) \u0111\u01a1n gi\u1ea3n h\u01a1n<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/100g-coherent-dwdm-solution-overview\/\" target=\"_blank\" rel=\"\"><strong>DWDM \u0111\u1ed3ng pha 100G<\/strong><\/a><strong>:<\/strong> CAPEX cao h\u01a1n do quang h\u1ecdc b\u1ed9 thu ph\u00e1t ph\u1ee9c t\u1ea1p, b\u1ed9 x\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1 (DSP) v\u00e0 c\u00e1c b\u1ed9 ROADM c\u1ea7n thi\u1ebft; OPEX c\u0169ng cao h\u01a1n do y\u00eau c\u1ea7u gi\u00e1m s\u00e1t v\u00e0 qu\u1ea3n l\u00fd b\u01b0\u1edbc s\u00f3ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ed5 ch\u1ee9c ph\u1ea3i c\u00e2n nh\u1eafc gi\u1eefa y\u00eau c\u1ea7u li\u00ean k\u1ebft v\u00e0 ng\u00e2n s\u00e1ch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 ph\u1ee9c t\u1ea1p tri\u1ec3n khai b\u1ed9 thu ph\u00e1t SFP<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>SFP 100 km:<\/strong> C\u1eafm v\u00e0 ch\u1ea1y, c\u1ea5u h\u00ecnh t\u1ed1i thi\u1ec3u, ho\u1ea1t \u0111\u1ed9ng tr\u00ean s\u1ee3i quang OS2 ti\u00eau chu\u1ea9n v\u1edbi b\u1ed9 khu\u1ebfch \u0111\u1ea1i quang EDFA t\u00f9y ch\u1ecdn<\/p><\/li>\n\n\n\n<li><p><strong>DWDM \u0111\u1ed3ng pha:<\/strong> Y\u00eau c\u1ea7u <strong>L\u1eadp k\u1ebf ho\u1ea1ch b\u01b0\u1edbc s\u00f3ng<\/strong>, <strong>C\u1ea5u h\u00ecnh m\u1ea1ng<\/strong>, <strong>C\u00e1c b\u1ed9 ROADM (B\u1ed9 gh\u00e9p t\u00e1ch quang t\u00e1i c\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c)<\/strong>, and <strong>Gi\u00e1m s\u00e1t li\u00ean k\u1ebft<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00f4-p\u00f4 ph\u1ee9c t\u1ea1p \u01b0u ti\u00ean s\u1eed d\u1ee5ng DWDM \u0111\u1ed3ng pha \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 t\u00edch h\u1ee3p dung l\u01b0\u1ee3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ch\u1ecdn m\u00f4-\u0111un SFP\/ZR 100 km n\u1ebfu:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Y\u00eau c\u1ea7u t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u \u226410G<\/p><\/li>\n\n\n\n<li><p>Li\u00ean k\u1ebft \u0111i\u1ec3m-\u0111i\u1ec3m duy nh\u1ea5t<\/p><\/li>\n\n\n\n<li><p>Mong mu\u1ed1n \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u1eadn h\u00e0nh t\u1ed1i thi\u1ec3u<\/p><\/li>\n\n\n\n<li><p>C\u00f3 r\u00e0ng bu\u1ed9c v\u1ec1 ng\u00e2n s\u00e1ch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ch\u1ecdn <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/489213.htm\"><strong>C\u00e1c m\u00f4-\u0111un DWDM \u0111\u1ed3ng pha<\/strong><\/a><strong> n\u1ebfu:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u \u2265100G<\/p><\/li>\n\n\n\n<li><p>M\u1ea1ng x\u01b0\u01a1ng s\u1ed1ng \u0111a k\u00eanh<\/p><\/li>\n\n\n\n<li><p>C\u1ea7n t\u00edch h\u1ee3p b\u1ed9 ROADM<\/p><\/li>\n\n\n\n<li><p>C\u1ea7n qu\u1ea3n l\u00fd t\u00e1n s\u1eafc v\u00e0 t\u1ef7 s\u1ed1 t\u00edn hi\u1ec7u-nhi\u1ec5u quang (OSNR) n\u00e2ng cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1ed1i v\u1edbi c\u00e1c \u0111o\u1ea1n \u0111\u01b0\u1eddng d\u00e0i \u0111\u1ebfn 100 km:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>SFP ZR-class<\/strong> cung c\u1ea5p gi\u1ea3i ph\u00e1p chi ph\u00ed hi\u1ec7u qu\u1ea3, \u0111\u1ed9 ph\u1ee9c t\u1ea1p th\u1ea5p cho t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u \u1edf m\u1ee9c v\u1eeba ph\u1ea3i<\/p><\/li>\n\n\n\n<li><p><strong>C\u00e1c m\u00f4-\u0111un DWDM \u0111\u1ed3ng pha<\/strong> \u0111\u01b0\u1ee3c bi\u1ec7n minh cho c\u00e1c li\u00ean k\u1ebft c\u00f3 dung l\u01b0\u1ee3ng c\u1ef1c cao v\u1edbi nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng v\u00e0 \u0111\u1ecbnh tuy\u1ebfn n\u00e2ng cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t m\u1ea1ng t\u1ed1i \u01b0u, t\u1ed5n th\u1ea5t d\u1ef1 ph\u00f2ng t\u1ed1i thi\u1ec3u v\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>C\u00e1c r\u1ee7i ro tri\u1ec3n khai SFP 100 km &amp; Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch &amp; C\u00e1c l\u01b0u \u00fd v\u1ec1 EEPROM<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tri\u1ec3n khai b\u1ed9 thu ph\u00e1t SFP 100 km \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00fa \u00fd c\u1ea9n tr\u1ecdng \u0111\u1ed1i v\u1edbi <strong>k\u1ef9 thu\u1eadt li\u00ean k\u1ebft, t\u00ecnh tr\u1ea1ng s\u1ee3i quang v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a m\u00f4-\u0111un<\/strong>. Ngay c\u1ea3 khi c\u00e1c m\u00f4-\u0111un \u0111\u01b0\u1ee3c \u0111\u1eb7c t\u1ea3 \u0111\u00fang, m\u1ed9t s\u1ed1 r\u1ee7i ro v\u1eabn c\u00f3 th\u1ec3 l\u00e0m suy gi\u1ea3m hi\u1ec7u su\u1ea5t ho\u1eb7c ng\u0103n c\u1ea3n ho\u1ea1t \u0111\u1ed9ng th\u00e0nh c\u00f4ng.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7dfcefba74df488a9b18fe92ef0c384b.jpg\" alt=\"SFP 100km Deployment Risks &amp; Compatibility &amp; EEPROM Considerations\" class=\"wp-image-2686\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7dfcefba74df488a9b18fe92ef0c384b.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7dfcefba74df488a9b18fe92ef0c384b-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7dfcefba74df488a9b18fe92ef0c384b-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7dfcefba74df488a9b18fe92ef0c384b-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7dfcefba74df488a9b18fe92ef0c384b-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b2 C\u00e1c r\u1ee7i ro tri\u1ec3n khai<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>R\u1ee7i ro<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u00f4 t\u1ea3<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Qu\u00e1 t\u1ea3i b\u1ed9 thu (li\u00ean k\u1ebft ng\u1eafn)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f4ng su\u1ea5t quang cao tr\u00ean c\u00e1c \u0111o\u1ea1n ng\u1eafn c\u00f3 th\u1ec3 g\u00e2y b\u00e3o h\u00f2a b\u1ed9 thu<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng b\u1ed9 suy hao n\u1ed1i ti\u1ebfp ho\u1eb7c ch\u1ecdn m\u00f4-\u0111un c\u00f3 c\u00f4ng su\u1ea5t th\u1ea5p h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>L\u00e3o h\u00f3a s\u1ee3i quang<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed5n hao t\u0103ng l\u00ean ho\u1eb7c c\u00e1c u\u1ed1n cong vi m\u00f4 theo th\u1eddi gian l\u00e0m gi\u1ea3m d\u1ef1 ph\u00f2ng quang<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ki\u1ec3m tra OTDR \u0111\u1ecbnh k\u1ef3 v\u00e0 t\u00ednh l\u1ea1i d\u1ef1 ph\u00f2ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1edf r\u1ed9ng xung tr\u00ean c\u00e1c kho\u1ea3ng c\u00e1ch d\u00e0i, \u0111\u1eb7c bi\u1ec7t \u1edf t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng laser DFB c\u00f3 \u0111\u1ed9 r\u1ed9ng v\u1ea1ch h\u1eb9p; c\u00e2n nh\u1eafc b\u00f9 t\u00e1n s\u1eafc cho c\u00e1c li\u00ean k\u1ebft &gt;10G<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>H\u1ec7 s\u1ed1 nhi\u1ec5u c\u1ee7a b\u1ed9 khu\u1ebfch \u0111\u1ea1i<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ed9 khu\u1ebfch \u0111\u1ea1i EDFA ho\u1eb7c b\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u0103ng c\u00f4ng su\u1ea5t g\u00e2y nhi\u1ec5u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Thi\u1ebft l\u1eadp \u0111\u1ed9 khu\u1ebfch \u0111\u1ea1i ph\u00f9 h\u1ee3p v\u00e0 gi\u00e1m s\u00e1t OSNR<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>C\u00e2n b\u1eb1ng c\u00f4ng su\u1ea5t<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ee9c c\u00f4ng su\u1ea5t truy\u1ec1n\/nh\u1eadn kh\u00f4ng kh\u1edbp nhau tr\u00ean c\u00e1c \u0111o\u1ea1n c\u00e1p ho\u1eb7c c\u00e1c k\u00eanh DWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Hi\u1ec7u chu\u1ea9n c\u00f4ng su\u1ea5t ph\u00e1t, ki\u1ec3m tra ng\u00e2n s\u00e1ch li\u00ean k\u1ebft cho t\u1eebng k\u00eanh<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u25b2 T\u00ednh t\u01b0\u01a1ng th\u00edch &amp; C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 EEPROM<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP 100 km d\u1ef1a v\u00e0o <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-eeprom-powers-sfp-and-qsfp-optical-modules\/\"><strong>B\u1ed9 nh\u1edb EEPROM<\/strong><\/a><strong> nh\u1eadn d\u1ea1ng v\u00e0 tu\u00e2n th\u1ee7 firmware<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb ch\u1ee7 ch\u1ea5p nh\u1eadn module v\u00e0 gi\u00e1m s\u00e1t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>T\u00e0i li\u1ec7u tham kh\u1ea3o ch\u00ednh:<\/strong> <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-8472-standard-explained-ddm-for-optical-transceivers\/\" target=\"_blank\" rel=\"\">Long-distance fiber links<\/a><\/p><\/li>\n\n\n\n<li><p><strong>Gi\u00e1m s\u00e1t DOM:<\/strong> Cung c\u1ea5p ph\u1ea3n h\u1ed3i th\u1eddi gian th\u1ef1c v\u1ec1 c\u00f4ng su\u1ea5t quang, nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p<\/p><\/li>\n\n\n\n<li><p><strong>Kh\u00f3a nh\u00e0 cung c\u1ea5p &amp; T\u1eeb ch\u1ed1i firmware:<\/strong> M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb t\u1eeb ch\u1ed1i c\u00e1c module b\u00ean th\u1ee9 ba d\u1ef1a tr\u00ean c\u00e1c tr\u01b0\u1eddng EEPROM (OUI nh\u00e0 cung c\u1ea5p, m\u00e3 linh ki\u1ec7n, b\u01b0\u1edbc s\u00f3ng)<\/p><\/li>\n\n\n\n<li><p><strong>Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t:<\/strong> Lu\u00f4n x\u00e1c minh m\u00e3 h\u00f3a EEPROM, \u0111\u1ed1i chi\u1ebfu danh s\u00e1ch t\u01b0\u01a1ng th\u00edch v\u00e0 c\u1eadp nh\u1eadt firmware n\u1ebfu c\u1ea7n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ghi ch\u00fa k\u1ef9 thu\u1eadt:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00ednh x\u00e1c <strong>vi\u1ec7c t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch li\u00ean k\u1ebft, gi\u00e1m s\u00e1t DOM v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch \u0111\u00e3 \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p x\u00e1c minh<\/strong> l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 tri\u1ec3n khai module SFP 100 km m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady. Vi\u1ec7c b\u1ecf qua c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn <strong>c\u00e1c giao di\u1ec7n b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a do l\u1ed7i, ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u suy gi\u1ea3m ho\u1eb7c d\u1ef1 ph\u00f2ng h\u1ec7 th\u1ed1ng gi\u1ea3m<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 b\u1ed9 thu ph\u00e1t 100 km<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/719eca714ff04cc88369280a4be319b7.jpg\" alt=\"100km Transceiver FAQs\" class=\"wp-image-2687\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/719eca714ff04cc88369280a4be319b7.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/719eca714ff04cc88369280a4be319b7-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/719eca714ff04cc88369280a4be319b7-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/719eca714ff04cc88369280a4be319b7-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/719eca714ff04cc88369280a4be319b7-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C1: Module quang 100 km c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1edf kho\u1ea3ng c\u00e1ch 50 km \u0111\u01b0\u1ee3c kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, ch\u00fang c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn h\u01a1n, nh\u01b0ng b\u1ed9 thu c\u00f3 th\u1ec3 g\u1eb7p ph\u1ea3i <strong>hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 t\u1ea3i<\/strong>. S\u1eed d\u1ee5ng b\u1ed9 suy hao n\u1ed1i ti\u1ebfp n\u1ebfu c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C2: \u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu c\u00f4ng su\u1ea5t thu qu\u00e1 cao?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng su\u1ea5t quang qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 l\u00e0m b\u00e3o h\u00f2a b\u1ed9 thu, g\u00e2y ra <strong>l\u1ed7i t\u00edn hi\u1ec7u ho\u1eb7c m\u1ea5t \u1ed5n \u0111\u1ecbnh li\u00ean k\u1ebft<\/strong>. Khi \u0111\u00f3 c\u00f3 th\u1ec3 c\u1ea7n d\u00f9ng b\u1ed9 suy hao ho\u1eb7c module c\u00f3 c\u00f4ng su\u1ea5t ph\u00e1t th\u1ea5p h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C3: T\u00f4i c\u00f3 th\u1ec3 tr\u1ed9n module ER v\u00e0 ZR \u0111\u01b0\u1ee3c kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng, <strong>C\u00e1c module ER v\u00e0 ZR c\u00f3 ng\u00e2n s\u00e1ch quang kh\u00e1c nhau<\/strong>. Vi\u1ec7c tr\u1ed9n l\u1eabn c\u00f3 th\u1ec3 g\u00e2y l\u1ed7i li\u00ean k\u1ebft ho\u1eb7c l\u00e0m gi\u1ea3m d\u1ef1 ph\u00f2ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C4: C\u00f3 c\u1ea7n b\u00f9 t\u00e1n s\u1eafc kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi module l\u1edbp ZR 10G tr\u00ean s\u1ee3i quang OS2, th\u01b0\u1eddng <strong>kh\u00f4ng y\u00eau c\u1ea7u<\/strong>. \u0110\u1ed1i v\u1edbi c\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao h\u01a1n ho\u1eb7c s\u1ee3i quang ch\u1ea5t l\u01b0\u1ee3ng k\u00e9m, c\u00f3 th\u1ec3 c\u1ea7n b\u00f9 t\u00e1n s\u1eafc.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C5: B\u1ed9 thu ph\u00e1t SFP 100 km l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t module c\u1eafm r\u1eddi \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng <strong>s\u1ee3i quang \u0111\u01a1n mode<\/strong> tr\u00ean 100 km b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng <strong>laser DFB 1550 nm<\/strong> v\u00e0 \u0111\u1ed9 nh\u1ea1y Rx cao, th\u01b0\u1eddng c\u00f3 ng\u00e2n s\u00e1ch quang \u226530 dB.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e2u h\u1ecfi 6: Kho\u1ea3ng c\u00e1ch 100 km c\u00f3 y\u00eau c\u1ea7u khu\u1ebfch \u0111\u1ea1i quang kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i c\u00e1p quang v\u00e0 d\u1ef1 ph\u00f2ng. <strong>C\u00e1p quang OS2 s\u1ea1ch<\/strong> c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n b\u1ed9 khu\u1ebfch \u0111\u1ea1i EDFA, nh\u01b0ng ph\u1ea7n l\u1edbn tri\u1ec3n khai th\u1ef1c t\u1ebf s\u1eed d\u1ee5ng <strong>b\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u0103ng c\u01b0\u1eddng ho\u1eb7c b\u1ed9 khu\u1ebfch \u0111\u1ea1i ti\u1ec1n khu\u1ebfch \u0111\u1ea1i<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e2u h\u1ecfi 7: B\u01b0\u1edbc s\u00f3ng n\u00e0o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho kho\u1ea3ng c\u00e1ch 100 km?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng th\u01b0\u1eddng <strong>1550 nm<\/strong>, n\u1eb1m trong d\u1ea3i <strong>b\u0103ng C<\/strong> c\u1eeda s\u1ed5 suy hao th\u1ea5p. C\u00e1c ngu\u1ed3n ph\u00e1t VCSEL ho\u1eb7c b\u01b0\u1edbc s\u00f3ng 850 nm kh\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e2u h\u1ecfi 8: S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ER v\u00e0 ZR l\u00e0 g\u00ec?<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Tham s\u1ed1<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>ER<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>ZR<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ea7m ho\u1ea1t \u0111\u1ed9ng ti\u00eau chu\u1ea9n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~40 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~80\u2013100 km<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ng\u00e2n s\u00e1ch quang h\u1ecdc<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>20\u201325 dB<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>28\u201332 dB<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e2u h\u1ecfi 9: Module 100 km c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n EDFA kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, n\u1ebfu c\u00e1p quang c\u00f3 t\u1ed5n hao th\u1ea5p (OS2) v\u00e0 d\u1ef1 ph\u00f2ng \u0111\u01b0\u1eddng truy\u1ec1n \u0111\u1ee7, <strong>vi\u1ec7c khu\u1ebfch \u0111\u1ea1i c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n thi\u1ebft<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e2u h\u1ecfi 10: Lo\u1ea1i c\u00e1p quang n\u00e0o l\u00e0 b\u1eaft bu\u1ed9c?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1p quang \u0111\u01a1n mode OS2<\/strong>, suy hao th\u1ea5p, ph\u00f9 h\u1ee3p ti\u00eau chu\u1ea9n G.652.D, v\u1edbi s\u1ed1 l\u01b0\u1ee3ng m\u1ed1i n\u1ed1i t\u1ed1i thi\u1ec3u v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea7u n\u1ed1i \u0111\u1ea3m b\u1ea3o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e2u h\u1ecfi 11: Ng\u00e2n s\u00e1ch quang c\u1ee7a module SFP 100 km l\u00e0 bao nhi\u00eau?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng th\u01b0\u1eddng <strong>\u226530 dB<\/strong>, \u0111\u1ec1u <strong>C\u00f4ng su\u1ea5t ph\u00e1t (Tx), t\u1ed5n hao c\u00e1p quang, t\u1ed5n hao \u0111\u1ea7u n\u1ed1i\/m\u1ed1i n\u1ed1i v\u00e0 d\u1ef1 ph\u00f2ng h\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u2705 <\/strong>K\u1ebft lu\u1eadn &amp; H\u01b0\u1edbng d\u1eabn tri\u1ec3n khai b\u1ed9 thu ph\u00e1t SFP 100 km<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t SFP 100 km \u0111\u1ea1i di\u1ec7n cho <strong>c\u00e1c li\u00ean k\u1ebft quang c\u00f4ng su\u1ea5t cao, t\u1ea7m xa<\/strong> \u0111\u00f2i h\u1ecfi thi\u1ebft k\u1ebf v\u00e0 l\u1eadp k\u1ebf ho\u1ea1ch k\u1ef9 thu\u1eadt c\u1ea9n th\u1eadn. Vi\u1ec7c tri\u1ec3n khai th\u00e0nh c\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c t\u00ednh to\u00e1n ch\u00ednh x\u00e1c ng\u00e2n s\u00e1ch \u0111\u01b0\u1eddng truy\u1ec1n v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u00fang ti\u00eau chu\u1ea9n. <strong>vi\u1ec7c l\u1ef1a ch\u1ecdn lo\u1ea1i c\u00e1p quang (SMF\/OS2)<\/strong>, v\u00e0 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi <strong>b\u01b0\u1edbc s\u00f3ng 1550 nm c\u00f3 suy hao th\u1ea5p<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6612848dd30c47e9b6ea6ccdc57545a3.jpg\" alt=\"SFP 100km Transceiver Conclusion &amp; Deployment Guidance\" class=\"wp-image-2688\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6612848dd30c47e9b6ea6ccdc57545a3.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6612848dd30c47e9b6ea6ccdc57545a3-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6612848dd30c47e9b6ea6ccdc57545a3-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6612848dd30c47e9b6ea6ccdc57545a3-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6612848dd30c47e9b6ea6ccdc57545a3-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf, n\u00ean duy tr\u00ec d\u1ef1 ph\u00f2ng h\u1ec7 th\u1ed1ng \u00edt nh\u1ea5t 3 dB \u0111\u1ec3 b\u00f9 cho hi\u1ec7n t\u01b0\u1ee3ng l\u00e3o h\u00f3a c\u00e1p quang, t\u1ed5n hao t\u1ea1i \u0111\u1ea7u n\u1ed1i\/m\u1ed1i n\u1ed1i v\u00e0 c\u00e1c bi\u1ebfn thi\u00ean ti\u1ec1m \u1ea9n v\u1ec1 hi\u1ec7u n\u0103ng c\u1ee7a b\u1ed9 ph\u00e1t\/b\u1ed9 thu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c \u0111i\u1ec3m n\u1ed5i b\u1eadt v\u1ec1 h\u01b0\u1edbng d\u1eabn tri\u1ec3n khai:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c minh <strong>Ph\u00e2n lo\u1ea1i ER so v\u1edbi ZR<\/strong> v\u00e0 ng\u00e2n s\u00e1ch quang h\u1ecdc<\/p><\/li>\n\n\n\n<li><p>X\u00e1c nh\u1eadn <strong>t\u00ecnh tr\u1ea1ng c\u00e1p quang, c\u00e1c m\u1ed1i n\u1ed1i v\u00e0 \u0111\u1ea7u n\u1ed1i<\/strong><\/p><\/li>\n\n\n\n<li><p>Gi\u00e1m s\u00e1t <strong>gi\u00e1 tr\u1ecb \u0111\u1ecdc t\u1eeb ch\u1ee9c n\u0103ng gi\u00e1m s\u00e1t k\u1ef9 thu\u1eadt s\u1ed1 (DOM)<\/strong> v\u1ec1 c\u00f4ng su\u1ea5t ph\u00e1t\/thu v\u00e0 nhi\u1ec7t \u0111\u1ed9<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o <strong>kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a b\u1ed9 nh\u1edb EEPROM v\u00e0 firmware<\/strong><\/p><\/li>\n\n\n\n<li><p>Ch\u1ec9 l\u00ean k\u1ebf ho\u1ea1ch s\u1eed d\u1ee5ng b\u1ed9 khu\u1ebfch \u0111\u1ea1i n\u1ebfu t\u1ed5n hao \u0111\u01b0\u1eddng truy\u1ec1n v\u01b0\u1ee3t qu\u00e1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a module<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1m ph\u00e1 to\u00e0n b\u1ed9 d\u00f2ng s\u1ea3n ph\u1ea9m transceiver SFP 100 km c\u1ee7a LINK-PP nh\u1eb1m \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i \u0111\u01b0\u1eddng d\u00e0i \u0111\u00e1ng tin c\u1eady. \u0110\u1ea3m b\u1ea3o tri\u1ec3n khai t\u1ed1i \u01b0u v\u1edbi c\u00e1c module \u0111\u00e3 \u0111\u01b0\u1ee3c k\u1ef9 s\u01b0 x\u00e1c minh, ng\u00e2n s\u00e1ch \u0111\u01b0\u1eddng truy\u1ec1n ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ea7y \u0111\u1ee7 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ddm-dom-in-optical-transceivers\/\">DOM<\/a> h\u1ed7 tr\u1ee3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udd17 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/\">C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Gi\u1ea3i th\u00edch b\u1ed9 thu ph\u00e1t SFP 100 km l\u00e0 g\u00ec, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ER v\u00e0 ZR, b\u01b0\u1edbc s\u00f3ng y\u00eau c\u1ea7u, c\u00e1ch t\u00ednh ng\u00e2n s\u00e1ch quang v\u00e0 vi\u1ec7c c\u00f3 c\u1ea7n khu\u1ebfch \u0111\u1ea1i hay kh\u00f4ng cho c\u00e1c li\u00ean k\u1ebft c\u00e1p quang \u0111\u01b0\u1eddng d\u00e0i.<\/p>","protected":false},"author":1,"featured_media":2678,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[26],"class_list":["post-2689","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2689","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=2689"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2689\/revisions"}],"predecessor-version":[{"id":10767,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2689\/revisions\/10767"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/2678"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=2689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=2689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=2689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}