{"id":4186,"date":"2026-05-13T01:44:50","date_gmt":"2026-05-13T01:44:50","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/eml-laser-diodes-explained-for-optical-modules\/"},"modified":"2026-06-22T03:27:34","modified_gmt":"2026-06-22T03:27:34","slug":"eml-laser-diodes-explained-for-optical-modules","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/eml-laser-diodes-explained-for-optical-modules","title":{"rendered":"Laser \u0111i\u1ec1u ch\u1ebf h\u1ea5p th\u1ee5 \u0111i\u1ec7n (EML): L\u00fd t\u01b0\u1edfng cho truy\u1ec1n th\u00f4ng quang t\u1ed1c \u0111\u1ed9 cao v\u00e0 kho\u1ea3ng c\u00e1ch xa"},"content":{"rendered":"<p class=\"wp-block-paragraph\">M\u1ed9t <strong>Laser \u0111i\u1ec1u ch\u1ebf b\u1eb1ng h\u1ea5p th\u1ee5 \u0111i\u1ec7n (EML)<\/strong> k\u1ebft h\u1ee3p c\u01a1 ch\u1ebf ph\u1ea3n h\u1ed3i ph\u00e2n t\u00e1n, c\u00e1c m\u1ea1ch EML th\u1ec3 hi\u1ec7n hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i trong c\u00e1c li\u00ean k\u1ebft \u0111\u01b0\u1eddng d\u00e0i m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ebfn b\u1ed9 khu\u1ebfch \u0111\u1ea1i. V\u00ed d\u1ee5, <strong>28 Gbaud PAM4<\/strong> t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 truy\u1ec1n t\u1edbi <strong>t\u1ed1i \u0111a 240 km<\/strong> tr\u00ean SMF ti\u00eau chu\u1ea9n. Nh\u1edd t\u00ednh \u1ed5n \u0111\u1ecbnh cao, ch\u00fang \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng \u0111\u1ec3 <strong>metro<\/strong> and <strong>x\u01b0\u01a1ng s\u1ed1ng<\/strong> tri\u1ec3n khai m\u1ea1ng. Laser DFB v\u00e0 b\u1ed9 \u0111i\u1ec1u ch\u1ebf h\u1ea5p th\u1ee5 \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p tr\u00ean c\u00f9ng m\u1ed9t chip. Thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p laser t\u1ea1o ra t\u00edn hi\u1ec7u quang \u1ed5n \u0111\u1ecbnh v\u00e0 sau \u0111\u00f3 \u0111i\u1ec1u ch\u1ebf t\u00edn hi\u1ec7u \u0111\u00f3 \u1edf t\u1ed1c \u0111\u1ed9 cao, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu cho truy\u1ec1n th\u00f4ng quang t\u1ed1c \u0111\u1ed9 cao, t\u1ea7m xa. C\u00f4ng ngh\u1ec7 EML h\u1ed7 tr\u1ee3 c\u00e1c k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u1ea1ng vi\u1ec5n th\u00f4ng. Nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng \u0111\u1ed1i v\u1edbi 5G, AI v\u00e0 c\u00e1c d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y \u0111ang th\u00fac \u0111\u1ea9y vi\u1ec7c \u00e1p d\u1ee5ng nhanh ch\u00f3ng c\u00e1c \u0111i-\u1ed1t laser \u0111i\u1ec1u ch\u1ebf b\u1eb1ng h\u1ea5p th\u1ee5 \u0111i\u1ec7n (EML). LINK\u2011PP t\u00edch h\u1ee3p c\u00f4ng ngh\u1ec7 EML\u2011based <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">b\u1ed9 thu ph\u00e1t quang<\/a> cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1db15132627049ef869302be135edd3e.webp\" alt=\"EML (Laser \u0111i\u1ec1u ch\u1ebf b\u1eb1ng h\u1ea5p th\u1ee5 \u0111i\u1ec7n)\" class=\"wp-image-4183\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1db15132627049ef869302be135edd3e.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1db15132627049ef869302be135edd3e-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1db15132627049ef869302be135edd3e-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1db15132627049ef869302be135edd3e-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1db15132627049ef869302be135edd3e-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup\/><tbody><tr\/><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c \u0111i-\u1ed1t EML k\u1ebft h\u1ee3p m\u1ed9t tia laser v\u00e0 m\u1ed9t b\u1ed9 \u0111i\u1ec1u ch\u1ebf h\u1ea5p th\u1ee5 \u0111i\u1ec7n tr\u00ean c\u00f9ng m\u1ed9t chip, gi\u00fap truy\u1ec1n d\u1eef li\u1ec7u quang h\u1ecdc nhanh ch\u00f3ng v\u00e0 \u1ed5n \u0111\u1ecbnh tr\u00ean qu\u00e3ng \u0111\u01b0\u1eddng d\u00e0i.<\/p><\/li><li><p>Ch\u00fang cung c\u1ea5p kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ebf t\u1ed1c \u0111\u1ed9 cao v\u1edbi \u0111\u1ed9 m\u00e9o t\u00edn hi\u1ec7u th\u1ea5p, nh\u1edd \u0111\u00f3 tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p l\u00fd t\u01b0\u1edfng cho c\u00e1c m\u1ea1ng c\u00f3 y\u00eau c\u1ea7u kh\u1eaft khe nh\u01b0 h\u1ec7 th\u1ed1ng m\u1ea1ng \u0111\u00f4 th\u1ecb v\u00e0 m\u1ea1ng tr\u1ee5c ch\u00ednh.<\/p><\/li><li><p>So v\u1edbi <strong>laser \u0111i\u1ec1u ch\u1ebf tr\u1ef1c ti\u1ebfp (DML)<\/strong>, C\u00e1c m\u00f4-\u0111un EML mang l\u1ea1i ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u t\u1ed1t h\u01a1n, ph\u1ea1m vi ph\u1ee7 s\u00f3ng xa h\u01a1n v\u00e0 t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u cao h\u01a1n, nh\u01b0ng \u0111i k\u00e8m v\u1edbi chi ph\u00ed cao h\u01a1n v\u00e0 nhu c\u1ea7u ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng l\u1edbn h\u01a1n.<\/p><\/li><li><p>C\u00e1c \u0111i-\u1ed1t EML \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">module quang<br><\/a> d\u00e0nh cho c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u, ng\u00e0nh vi\u1ec5n th\u00f4ng v\u00e0 l\u0129nh v\u1ef1c t\u00ednh to\u00e1n hi\u1ec7u su\u1ea5t cao, n\u01a1i t\u1ed1c \u0111\u1ed9 v\u00e0 kho\u1ea3ng c\u00e1ch l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>Ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 laser \u0111i\u1ec1u ch\u1ebf b\u1eb1ng h\u1ea5p th\u1ee5 \u0111i\u1ec7n (EML)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >EML l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Laser EML l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb quang h\u1ecdc ti\u00ean ti\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao. Thi\u1ebft b\u1ecb n\u00e0y bao g\u1ed3m hai b\u1ed9 ph\u1eadn ch\u00ednh: m\u1ed9t <strong>ph\u1ea3n h\u1ed3i ph\u00e2n t\u00e1n (<\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/dfb-laser-definition\/\"><strong>DFB<\/strong><\/a><strong>) laser<\/strong> v\u00e0 m\u1ed9t <strong>b\u1ed9 \u0111i\u1ec1u ch\u1ebf h\u1ea5p th\u1ee5 \u0111i\u1ec7n (EAM)<\/strong>. Laser DFB t\u1ea1o ra m\u1ed9t ngu\u1ed3n s\u00e1ng \u1ed5n \u0111\u1ecbnh v\u1edbi b\u01b0\u1edbc s\u00f3ng \u0111\u01a1n. Sau \u0111\u00f3, m\u1ea1ch EAM \u0111i\u1ec1u ch\u1ebf ngu\u1ed3n s\u00e1ng n\u00e0y \u0111\u1ec3 m\u00e3 h\u00f3a c\u00e1c t\u00edn hi\u1ec7u d\u1eef li\u1ec7u. Nh\u1edd t\u00edch h\u1ee3p c\u1ea3 hai th\u00e0nh ph\u1ea7n tr\u00ean c\u00f9ng m\u1ed9t chip, eml \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t cao v\u00e0 k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn. C\u00f4ng ngh\u1ec7 n\u00e0y h\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eef li\u1ec7u nhanh tr\u00ean kho\u1ea3ng c\u00e1ch xa, do \u0111\u00f3 tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ed1i v\u1edbi c\u00e1c m\u1ea1ng quang hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>Note:<\/strong> C\u00e1c laser EML \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng \u0111\u00f4 th\u1ecb v\u00e0 h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng c\u1ed1t l\u00f5i. Kh\u1ea3 n\u0103ng duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u tr\u00ean qu\u00e3ng \u0111\u01b0\u1eddng d\u00e0i ch\u00ednh l\u00e0 \u0111i\u1ec3m n\u1ed5i b\u1eadt gi\u00fap ch\u00fang kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c lo\u1ea1i laser kh\u00e1c.<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a EML<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t <strong>Laser \u0111i\u1ec1u ch\u1ebf h\u1ea5p th\u1ee5 \u0111i\u1ec7n (EML)<\/strong> t\u00e1ch bi\u1ec7t qu\u00e1 tr\u00ecnh t\u1ea1o \u00e1nh s\u00e1ng v\u00e0 \u0111i\u1ec1u ch\u1ebf \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t cao h\u01a1n. Ph\u1ea7n laser DFB c\u1ee7a thi\u1ebft b\u1ecb n\u00e0y ph\u00e1t ra \u00e1nh s\u00e1ng s\u00f3ng li\u00ean t\u1ee5c (CW), sau \u0111\u00f3 \u0111i v\u00e0o <strong>EAM (B\u1ed9 \u0111i\u1ec1u ch\u1ebf h\u1ea5p th\u1ee5 \u0111i\u1ec7n)<\/strong>. EAM \u0111i\u1ec1u ch\u1ec9nh c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i \u0111\u1ed9 h\u1ea5p th\u1ee5 c\u1ee7a n\u00f3 d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111i\u1ec7n tr\u01b0\u1eddng \u2014 m\u00e0 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n laser. Kh\u00e1c v\u1edbi <strong>laser \u0111i\u1ec1u ch\u1ebf tr\u1ef1c ti\u1ebfp (DML)<\/strong>, gi\u00fap \u0111i\u1ec1u ch\u1ebf nhi\u1ec5u pha do d\u00f2ng \u0111i\u1ec7n v\u00e0 r\u1ee7i ro c\u0169ng nh\u01b0 s\u1ef1 tr\u00f4i b\u01b0\u1edbc s\u00f3ng, c\u00e1c b\u1ed9 ph\u00e1t EML s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf \u0111i\u1ec1u ch\u1ebf b\u00ean ngo\u00e0i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n th\u00f4ng quang \u1ed5n \u0111\u1ecbnh h\u01a1n, t\u1ed1c \u0111\u1ed9 cao v\u00e0 t\u1ea7m xa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf b\u00ean ngo\u00e0i n\u00e0y mang l\u1ea1i m\u1ed9t s\u1ed1 \u01b0u \u0111i\u1ec3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>N\u00f3 gi\u00fap duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a ch\u00f9m tia laser.<\/p><\/li><li><p>N\u00f3 cho ph\u00e9p b\u0103ng th\u00f4ng \u0111i\u1ec1u ch\u1ebf cao h\u01a1n, t\u1eeb \u0111\u00f3 h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u nhanh h\u01a1n.<\/p><\/li><li><p>N\u00f3 gi\u00fap gi\u1ea3m ti\u1ebfng \u1ed3n v\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/signal-distortion-definition-types-tips\/\">s\u1ef1 bi\u1ebfn d\u1ea1ng t\u00edn hi\u1ec7u<\/a>, t\u1eeb \u0111\u00f3 n\u00e2ng cao t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u t\u1ed5ng th\u1ec3.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u1ea5u tr\u00fac EML<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t laser EML bao g\u1ed3m hai ph\u1ea7n ch\u00ednh \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p tr\u00ean m\u1ed9t chip duy nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>B\u1ed9 ph\u1eadn Laser c\u1ee7a DFB:<\/strong> B\u1ed9 ph\u1eadn n\u00e0y s\u1eed d\u1ee5ng g\u01b0\u01a1ng ph\u1ea3n x\u1ea1 Bragg ph\u00e2n t\u00e1n (DFB) \u0111\u1ec3 kh\u00f3a b\u01b0\u1edbc s\u00f3ng m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. Chi\u1ec1u d\u00e0i c\u1ee7a n\u00f3 th\u01b0\u1eddng kho\u1ea3ng 300 micromet. Laser DFB ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 s\u00f3ng li\u00ean t\u1ee5c, cung c\u1ea5p m\u1ed9t ngu\u1ed3n s\u00e1ng \u1ed5n \u0111\u1ecbnh.<\/p><\/li><li><p><strong>Ph\u1ea7n EAM:<\/strong> N\u1eb1m ngay b\u00ean c\u1ea1nh laser DFB, d\u1ea3i b\u01b0\u1edbc s\u00f3ng c\u1ee7a b\u1ed9 ph\u1eadn EAM th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb 80 \u0111\u1ebfn 120 micromet. B\u1ed9 ph\u1eadn n\u00e0y s\u1eed d\u1ee5ng hi\u1ec7u \u1ee9ng Stark do hi\u1ec7u \u1ee9ng giam c\u1ea7m l\u01b0\u1ee3ng t\u1eed \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf \u00e1nh s\u00e1ng. Khi c\u00f3 \u0111i\u1ec7n tr\u01b0\u1eddng t\u00e1c \u0111\u1ed9ng, EAM thay \u0111\u1ed5i \u0111\u1ed9 h\u1ea5p th\u1ee5, cho ph\u00e9p n\u00f3 m\u00e3 h\u00f3a d\u1eef li\u1ec7u v\u00e0o t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 thi\u1ebft k\u1ebf EML ti\u00ean ti\u1ebfn \u0111\u01b0\u1ee3c trang b\u1ecb b\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u0103ng c\u01b0\u1eddng \u0111\u1ec3 n\u00e2ng cao c\u00f4ng su\u1ea5t \u0111\u1ea7u ra. C\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i n\u00e0y s\u1eed d\u1ee5ng c\u00e1c r\u00e3nh c\u00e1ch ly \u0111\u1ec3 t\u00e1ch v\u00f9ng khu\u1ebfch \u0111\u1ea1i kh\u1ecfi v\u00f9ng \u0111i\u1ec1u ch\u1ebf, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng t\u1ed1i \u01b0u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u00edch h\u1ee3p c\u1ea3 hai ph\u1ea7n n\u00e0y tr\u00ean m\u1ed9t con chip duy nh\u1ea5t, th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb <strong>ph\u1ed1t ph\u00e1t indi (InP)<\/strong>, gi\u00fap t\u1ea1o ra m\u1ed9t thi\u1ebft b\u1ecb nh\u1ecf g\u1ecdn v\u00e0 \u0111\u00e1ng tin c\u1eady. C\u1ea5u tr\u00fac n\u00e0y h\u1ed7 tr\u1ee3 \u0111i\u1ec1u ch\u1ebf t\u1ed1c \u0111\u1ed9 cao v\u00e0 truy\u1ec1n d\u1eabn quang \u0111\u01b0\u1eddng d\u00e0i, khi\u1ebfn eml tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean trong c\u00e1c m\u00f4i tr\u01b0\u1eddng truy\u1ec1n th\u00f4ng c\u00f3 y\u00eau c\u1ea7u kh\u1eaft khe.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>M\u1eb9o:<br><\/strong> Vi\u1ec7c b\u1ed1 tr\u00ed v\u00e0 t\u00edch h\u1ee3p ch\u00ednh x\u00e1c c\u00e1c b\u1ed9 ph\u1eadn laser DFB v\u00e0 EAM l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t cao c\u1ea7n thi\u1ebft trong c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">module quang<br><\/a>.<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>T\u1ed5ng quan v\u1ec1 c\u00e1c t\u00ednh n\u0103ng c\u1ee7a EML<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >1. \u0110i\u1ec1u ch\u1ebf t\u1ed1c \u0111\u1ed9 cao<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111i-\u1ed1t EML h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 \u0111i\u1ec1u ch\u1ebf c\u1ef1c nhanh, y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ed1i v\u1edbi c\u00e1c m\u1ea1ng quang th\u1ebf h\u1ec7 m\u1edbi. Nh\u1edd t\u00edch h\u1ee3p laser DFB v\u00e0 b\u1ed9 \u0111i\u1ec1u ch\u1ebf h\u1ea5p th\u1ee5 \u0111i\u1ec7n, c\u00e1c chip EML th\u01b0\u01a1ng m\u1ea1i c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 l\u00ean \u0111\u1ebfn <strong>212 Gbps PAM4 (106 GBaud)<\/strong>, v\u1edbi m\u1ed9t <strong>B\u0103ng th\u00f4ng 3dB kho\u1ea3ng 65 GHz<\/strong>, h\u1ed7 tr\u1ee3 c\u00e1c b\u1ed9 thu ph\u00e1t LR4 800G v\u00e0 c\u00e1c th\u1ebf h\u1ec7 cao h\u01a1n. Thi\u1ebft k\u1ebf n\u00e0y \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng chuy\u1ec3n m\u1ea1ch nhanh ch\u00f3ng v\u00e0 ki\u1ec3m so\u00e1t quang h\u1ecdc ch\u00ednh x\u00e1c, v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi nhi\u1ec1u ti\u00eau chu\u1ea9n b\u0103ng th\u00f4ng trong ng\u00e0nh.<\/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;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>Tham s\u1ed1<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Value<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1c \u0111\u1ed9 \u0111i\u1ec1u ch\u1ebf t\u1ed1i \u0111a<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>212 Gbps PAM4<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ef7 s\u1ed1 t\u1eaft m\u00e1y (ER)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2265 4,5 dB<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>TDECQ<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2264 2,0 dB<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>B\u0103ng th\u00f4ng 3dB<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~65 GHz<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >2. Ti\u1ebfng r\u00edt th\u1ea5p v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u k\u00e9m<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c DML, v\u1ed1n g\u1eb7p ph\u1ea3i v\u1ea5n \u0111\u1ec1 <strong>ti\u1ebfng k\u00eau cao<\/strong> v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng m\u00e9o t\u00edn hi\u1ec7u \u1edf t\u1ed1c \u0111\u1ed9 cao, c\u00e1c c\u1ea3m bi\u1ebfn EML v\u1eabn duy tr\u00ec <strong>ti\u1ebfng k\u00eau nh\u1ecf<\/strong>, \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u tr\u00ean to\u00e0n b\u1ed9 \u0111\u01b0\u1eddng truy\u1ec1n.<\/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><strong>Tham s\u1ed1<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>DML<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>EML<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Bi\u1ebfn t\u1ea7n theo t\u1ea7n s\u1ed1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ti\u1ebfng k\u00eau cao<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ti\u1ebfng k\u00eau nh\u1ecf<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p h\u01a1n (b\u1ecb bi\u1ebfn d\u1ea1ng)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n (ti\u1ebfng k\u00eau gi\u1ea3m d\u1ea7n)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u00ednh ph\u00f9 h\u1ee3p c\u1ee7a \u1ee9ng d\u1ee5ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u1ef1 ly ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch xa<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >3. Truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u1ea1ch EML ho\u1ea1t \u0111\u1ed9ng r\u1ea5t hi\u1ec7u qu\u1ea3 tr\u00ean c\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n d\u00e0i m\u00e0 kh\u00f4ng c\u1ea7n b\u1ed9 khu\u1ebfch \u0111\u1ea1i. V\u00ed d\u1ee5, <strong>28 Gbaud PAM4<\/strong> t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 truy\u1ec1n t\u1edbi <strong>t\u1ed1i \u0111a 240 km<\/strong> tr\u00ean SMF ti\u00eau chu\u1ea9n. Nh\u1edd t\u00ednh \u1ed5n \u0111\u1ecbnh cao, ch\u00fang \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng \u0111\u1ec3 <strong>metro<\/strong> and <strong>x\u01b0\u01a1ng s\u1ed1ng<\/strong> vi\u1ec7c tri\u1ec3n khai m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>C\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a EML<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u26a1 Power &amp; Cost<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 hi\u1ec7u su\u1ea5t cao, EMLs l\u00e0 <strong>ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n<\/strong> and <strong>\u0111\u1eaft h\u01a1n<\/strong> h\u01a1n so v\u1edbi DML. S\u1ef1 t\u00edch h\u1ee3p ph\u1ee9c t\u1ea1p gi\u1eefa EAM v\u1edbi <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/dfb-laser-definition\/\">Laser DFB<\/a> \u0111\u00f2i h\u1ecfi c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t ti\u00ean ti\u1ebfn v\u00e0 mang l\u1ea1i <strong>30\u201350% c\u00f3 gi\u00e1 cao h\u01a1n<\/strong>. C\u00f3 th\u1ec3 c\u1ea7n th\u00eam ngu\u1ed3n \u0111i\u1ec7n cho <strong>l\u00e0m m\u00e1t<\/strong> and <strong>b\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u \u0111\u1ea7u ra<\/strong>, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi t\u1ed1c \u0111\u1ed9 cao v\u00e0 nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t \u0111\u1ed9.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" >\ud83e\udde9 Integration Challenges<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u00edch h\u1ee3p c\u00e1c m\u00f4-\u0111un EML v\u00e0o c\u00e1c m\u00f4-\u0111un nh\u1ecf g\u1ecdn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t<\/strong> thi\u1ebft k\u1ebf \u0111\u1ec3 x\u1eed l\u00fd s\u1ef1 d\u1ecbch chuy\u1ec3n b\u01b0\u1edbc s\u00f3ng<\/p><\/li><li><p><strong>Ki\u1ec3m so\u00e1t \u0111i\u1ec7n dung k\u00fd sinh<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n \u1edf t\u1ed1c \u0111\u1ed9 cao<\/p><\/li><li><p><strong>C\u00e1ch ly quang h\u1ecdc v\u00e0 \u0111i\u1ec7n<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u1ec1 hi\u1ec7u su\u1ea5t<\/p><\/li><li><p><strong>\u0110i\u1ec1u ch\u1ec9nh c\u1ea5u tr\u00fac MQW<\/strong> \u0111\u1ec3 ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng tr\u00e0n t\u00edn hi\u1ec7u mang v\u00e0 \u0111\u1ea3m b\u1ea3o c\u00f4ng su\u1ea5t \u0111\u1ea7u ra cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf m\u1ea1ch t\u1ea7n s\u1ed1 cao ti\u00ean ti\u1ebfn v\u00e0 v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>Khi n\u00e0o n\u00ean ch\u1ecdn EML<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng ngh\u1ec7 EML ph\u00e1t huy hi\u1ec7u qu\u1ea3 trong c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 c\u1ea3 hai <strong>t\u1ed1c \u0111\u1ed9 v\u00e0 qu\u00e3ng \u0111\u01b0\u1eddng<\/strong> l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 then ch\u1ed1t\u2014ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Truy\u1ec1n th\u00f4ng quang \u0111\u01b0\u1eddng d\u00e0i<\/p><\/li><li><p>B\u1ed9 thu ph\u00e1t 100G tr\u1edf l\u00ean<\/p><\/li><li><p>C\u00e1c k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u (DCI)<\/p><\/li><li><p>C\u00e1c m\u1ea1ng vi\u1ec5n th\u00f4ng tr\u1ea3i d\u00e0i h\u00e0ng ch\u1ee5c kil\u00f4m\u00e9t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ng\u01b0\u1ee3c l\u1ea1i, trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p \u0111\u01a1n gi\u1ea3n h\u01a1n, t\u1ed1c \u0111\u1ed9 th\u1ea5p h\u01a1n v\u00e0 ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng ng\u1eafn h\u01a1n, c\u00e1c h\u1ec7 th\u1ed1ng DML c\u00f3 th\u1ec3 l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p h\u01a1n nh\u1edd chi ph\u00ed th\u1ea5p h\u01a1n v\u00e0 y\u00eau c\u1ea7u v\u1ec1 c\u00f4ng su\u1ea5t th\u1ea5p h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u ti\u00eau chu\u1ea9n ng\u00e0nh quy \u0111\u1ecbnh vi\u1ec7c s\u1eed d\u1ee5ng \u0111i-\u1ed1t EML trong c\u00e1c m\u00f4-\u0111un quang. V\u00ed d\u1ee5, <a target=\"_blank\" href=\"https:\/\/www.l-p.com\/products\/482843.htm\">M\u00f4-\u0111un SFP+ CWDM 10G<\/a> C\u00e1c m\u00f4-\u0111un tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n IEEE 802.3ae 10GBASE-LR\/LW\/ER\/ZR s\u1eed d\u1ee5ng laser EML trong b\u1ed9 ph\u1eadn ph\u00e1t. C\u00e1c m\u00f4-\u0111un n\u00e0y ho\u1ea1t \u0111\u1ed9ng tr\u00ean s\u1ee3i quang \u0111\u01a1n mode v\u00e0 y\u00eau c\u1ea7u \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh b\u01b0\u1edbc s\u00f3ng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn xa.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>M\u1eb9o: \u0110i-\u1ed1t EML l\u00e0 l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean cho c\u00e1c m\u00f4-\u0111un quang trong c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng quang t\u1ed1c \u0111\u1ed9 cao, kho\u1ea3ng c\u00e1ch xa, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c m\u1ea1ng \u0111\u00f4 th\u1ecb v\u00e0 m\u1ea1ng tr\u1ee5c ch\u00ednh.<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>K\u1ebft lu\u1eadn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng ngh\u1ec7 EML l\u00e0 n\u1ec1n t\u1ea3ng c\u1ed1t l\u00f5i c\u1ee7a hi\u1ec7u su\u1ea5t cao <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">module quang<br><\/a>. Nh\u1edd kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ebf r\u00f5 n\u00e9t v\u00e0 kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao tr\u00ean kho\u1ea3ng c\u00e1ch xa, c\u00f4ng ngh\u1ec7 n\u00e0y tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho c\u00e1c m\u1ea1ng tr\u1ee5c ch\u00ednh vi\u1ec5n th\u00f4ng v\u00e0 c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u ti\u00ean ti\u1ebfn. C\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng l\u1ef1a ch\u1ecdn EML cho c\u00e1c li\u00ean k\u1ebft \u0111\u01b0\u1eddng d\u00e0i, t\u1ed1c \u0111\u1ed9 cao. Khi l\u1ef1a ch\u1ecdn lo\u1ea1i laser cho c\u00e1c m\u00f4-\u0111un quang, h\u1ecd xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 kho\u1ea3ng c\u00e1ch, lo\u1ea1i \u0111i\u1ec1u ch\u1ebf v\u00e0 chi ph\u00ed. <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\">LINK\u2011PP<\/a>\u2019Vi\u1ec7c t\u00edch h\u1ee3p c\u00e1c b\u1ed9 thu ph\u00e1t d\u1ef1a tr\u00ean c\u00f4ng ngh\u1ec7 EML v\u00e0o d\u00f2ng s\u1ea3n ph\u1ea9m ch\u00ednh th\u1ee9c c\u1ee7a c\u00f4ng ty n\u00e0y c\u00e0ng kh\u1eb3ng \u0111\u1ecbnh cam k\u1ebft c\u1ee7a h\u1ecd trong vi\u1ec7c cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p quang h\u1ecdc ti\u00ean ti\u1ebfn v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"719\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/35bc9f6f10fb446e9d3a2057b96c3f84.jpg\" alt=\"B\u1ed9 thu ph\u00e1t quang LINK-PP\" class=\"wp-image-4184\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/35bc9f6f10fb446e9d3a2057b96c3f84.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/35bc9f6f10fb446e9d3a2057b96c3f84-300x180.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/35bc9f6f10fb446e9d3a2057b96c3f84-1024x614.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/35bc9f6f10fb446e9d3a2057b96c3f84-768x460.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/35bc9f6f10fb446e9d3a2057b96c3f84-18x12.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>FAQ<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u01afu \u0111i\u1ec3m ch\u00ednh c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng \u0111i-\u1ed1t EML trong c\u00e1c m\u00f4-\u0111un quang l\u00e0 g\u00ec?<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>C\u00e1c \u0111i-\u1ed1t EML cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao v\u00e0 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u tr\u00ean c\u00e1c qu\u00e3ng \u0111\u01b0\u1eddng d\u00e0i. Thi\u1ebft k\u1ebf c\u1ee7a ch\u00fang \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong c\u00e1c m\u1ea1ng \u0111\u00f4 th\u1ecb v\u00e0 m\u1ea1ng tr\u1ee5c ch\u00ednh.<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110i\u1ec1u g\u00ec khi\u1ebfn \u0111i-\u1ed1t EML kh\u00e1c v\u1edbi \u0111i-\u1ed1t DML?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i-\u1ed1t EML s\u1eed d\u1ee5ng b\u1ed9 \u0111i\u1ec1u ch\u1ebf b\u00ean ngo\u00e0i \u0111\u1ec3 m\u00e3 h\u00f3a d\u1eef li\u1ec7u, trong khi \u0111i-\u1ed1t DML \u0111i\u1ec1u ch\u1ebf tr\u1ef1c ti\u1ebfp tia laser. C\u1ea5u tr\u00fac n\u00e0y gi\u00fap \u0111i-\u1ed1t EML c\u00f3 \u0111\u1ed9 l\u1ec7ch t\u1ea7n s\u1ed1 th\u1ea5p h\u01a1n v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1eefng \u1ee9ng d\u1ee5ng n\u00e0o th\u01b0\u1eddng s\u1eed d\u1ee5ng \u0111i-\u1ed1t EML?<\/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;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>L\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>V\u00ed d\u1ee5 v\u1ec1 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng l\u01b0\u1edbi t\u00e0u \u0111i\u1ec7n ng\u1ea7m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Truy\u1ec1n d\u1eef li\u1ec7u \u0111\u01b0\u1eddng d\u00e0i<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng x\u01b0\u01a1ng s\u1ed1ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c k\u00eanh truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i qua s\u1ee3i quang \u0111\u01a1n mode<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Kho\u1ea3ng c\u00e1ch truy\u1ec1n t\u00edn hi\u1ec7u th\u00f4ng th\u01b0\u1eddng c\u1ee7a c\u00e1c m\u00f4-\u0111un d\u1ef1a tr\u00ean c\u00f4ng ngh\u1ec7 EML l\u00e0 bao nhi\u00eau?<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>C\u00e1c m\u00f4-\u0111un d\u1ef1a tr\u00ean c\u00f4ng ngh\u1ec7 EML th\u01b0\u1eddng h\u1ed7 tr\u1ee3 kho\u1ea3ng c\u00e1ch t\u1eeb 40 km \u0111\u1ebfn 120 km ho\u1eb7c h\u01a1n. Ph\u1ea1m vi n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i v\u00e0 m\u1ea1ng \u0111\u00f4 th\u1ecb.<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>Xem Th\u00eam<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/appearance-structure-optical-module\/\">C\u00e1c b\u1ed9 ph\u1eadn b\u00ean ngo\u00e0i thi\u1ebft y\u1ebfu c\u1ea5u th\u00e0nh m\u00f4-\u0111un quang h\u1ecdc<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/key-parameters-of-optical-modules\/\">C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt quan tr\u1ecdng x\u00e1c \u0111\u1ecbnh hi\u1ec7u su\u1ea5t c\u1ee7a m\u00f4-\u0111un quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/laser-type-in-optical-transceiver\/\">T\u1ed5ng quan to\u00e0n di\u1ec7n v\u1ec1 c\u00e1c lo\u1ea1i laser \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u1ed9 thu ph\u00e1t<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-an-optical-module\/\">Hi\u1ec3u v\u1ec1 kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n c\u1ee7a m\u00f4-\u0111un quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/erbium-doped-fiber-amplifier-optical-networks\/\">Gi\u1ea3i th\u00edch vai tr\u00f2 c\u1ee7a EDFA trong c\u00e1c m\u1ea1ng truy\u1ec1n th\u00f4ng quang h\u1ecdc<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Kh\u00e1m ph\u00e1 c\u00e1ch EML ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c m\u00f4-\u0111un quang, l\u00fd do n\u00f3 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao v\u00e0 kho\u1ea3ng c\u00e1ch xa, c\u0169ng nh\u01b0 c\u00e1ch LINK\u2011PP cung c\u1ea5p c\u00e1c b\u1ed9 thu ph\u00e1t quang d\u1ef1a tr\u00ean EML.<\/p>","protected":false},"author":1,"featured_media":4185,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[26],"class_list":["post-4186","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4186","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=4186"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4186\/revisions"}],"predecessor-version":[{"id":10691,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4186\/revisions\/10691"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4185"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}