{"id":5938,"date":"2025-06-16T00:00:00","date_gmt":"2025-06-16T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/cwdm-vs-dwdm-differences-channel-capacity-distance-cost\/"},"modified":"2026-06-22T09:27:35","modified_gmt":"2026-06-22T09:27:35","slug":"cwdm-vs-dwdm-differences-channel-capacity-distance-cost","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/cwdm-vs-dwdm-differences-channel-capacity-distance-cost","title":{"rendered":"S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa CWDM v\u00e0 DWDM l\u00e0 g\u00ec?"},"content":{"rendered":"<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\/ec7c0b712c0d41d28bc4498741296e64.webp\" alt=\"CWDM vs. DWDM\" class=\"wp-image-5936\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ec7c0b712c0d41d28bc4498741296e64.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ec7c0b712c0d41d28bc4498741296e64-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ec7c0b712c0d41d28bc4498741296e64-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ec7c0b712c0d41d28bc4498741296e64-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ec7c0b712c0d41d28bc4498741296e64-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng (Wavelength Division Multiplexing)<\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/wdm-optical-transceiver-module-applications\/\"><strong>WDM<\/strong><\/a><strong>)<\/strong> \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a c\u00f4ng ngh\u1ec7 c\u00e1p quang b\u1eb1ng c\u00e1ch cho ph\u00e9p nhi\u1ec1u lu\u1ed3ng d\u1eef li\u1ec7u truy\u1ec1n \u0111\u1ed3ng th\u1eddi tr\u00ean m\u1ed9t s\u1ee3i c\u00e1p duy nh\u1ea5t. Hai bi\u1ebfn th\u1ec3 ch\u1ee7 \u0111\u1ea1o\u2014<strong>CWDM (\u0110a ph\u00e2n b\u01b0\u1edbc s\u00f3ng th\u00f4)<br> <\/strong>and <strong>DWDM (\u0110a ph\u00e2n b\u01b0\u1edbc s\u00f3ng d\u00e0y \u0111\u1eb7c)<\/strong>\u2014l\u00e0m n\u1ec1n t\u1ea3ng cho c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa CWDM v\u00e0 DWDM n\u1eb1m \u1edf dung l\u01b0\u1ee3ng k\u00eanh, t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n. C\u1ea3 hai \u0111\u1ec1u s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng, nh\u01b0ng CWDM v\u00e0 DWDM mang l\u1ea1i nh\u1eefng \u0111\u1eb7c t\u00ednh ri\u00eang bi\u1ec7t. B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y so s\u00e1nh c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh trong ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng, ch\u1eb3ng h\u1ea1n nh\u01b0 kho\u1ea3ng c\u00e1ch k\u00eanh v\u00e0 kh\u1ea3 n\u0103ng khu\u1ebfch \u0111\u1ea1i, s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/483258.htm\">LINK-PP LS-CW5310-20C<\/a> and <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/488746.htm\">LINK-PP LS-DW3210-40I<\/a> M\u00f4-\u0111un quang h\u1ecdc.<\/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>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>CWDM<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>DWDM<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch k\u00eanh<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>20 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0,8 nm (100 GHz), 0,4 nm (50 GHz)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1i \u0111a 18 k\u00eanh (1270\u20131610 nm)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1i \u0111a 18<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40\u2013160<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>c\u00e1c kho\u1ea3ng c\u00e1ch ng\u1eafn \u0111\u1ebfn trung b\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>truy\u1ec1n d\u1eabn d\u00e0i<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Laser \u0111i\u1ec1u ch\u1ebf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>DFB kh\u00f4ng l\u00e0m m\u00e1t<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>EML\/Tunable l\u00e0m m\u00e1t<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0,5 W m\u1ed7i m\u00f4-\u0111un<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4 W m\u1ed7i m\u00f4-\u0111un<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kh\u1ea3 n\u0103ng khu\u1ebfch \u0111\u1ea1i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>No<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f3<\/p><\/td><\/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><strong>CWDM<\/strong> cung c\u1ea5p gi\u1ea3i ph\u00e1p chi ph\u00ed th\u1ea5p, \u0111\u01a1n gi\u1ea3n cho c\u00e1c kho\u1ea3ng c\u00e1ch ng\u1eafn \u0111\u1ebfn trung b\u00ecnh v\u1edbi nhu c\u1ea7u d\u1eef li\u1ec7u v\u1eeba ph\u1ea3i, r\u1ea5t ph\u00f9 h\u1ee3p cho m\u1ea1ng \u0111\u00f4 th\u1ecb v\u00e0 m\u1ea1ng doanh nghi\u1ec7p.<\/p><\/li><li><p><strong>DWDM<\/strong> h\u1ed7 tr\u1ee3 dung l\u01b0\u1ee3ng d\u1eef li\u1ec7u cao h\u01a1n nhi\u1ec1u v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n xa h\u01a1n, s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn th\u00edch h\u1ee3p cho m\u1ea1ng l\u00f5i v\u00e0 m\u1ea1ng truy\u1ec1n d\u1eabn xa \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 hi\u1ec7u n\u0103ng cao.<\/p><\/li><li><p>Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa CWDM v\u00e0 DWDM ph\u1ee5 thu\u1ed9c v\u00e0o kho\u1ea3ng c\u00e1ch m\u1ea1ng c\u1ee7a b\u1ea1n, y\u00eau c\u1ea7u v\u1ec1 dung l\u01b0\u1ee3ng, ng\u00e2n s\u00e1ch v\u00e0 k\u1ebf ho\u1ea1ch ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 ph\u00f9 h\u1ee3p v\u00e0 gi\u00e1 tr\u1ecb t\u1ed1i \u01b0u.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >CWDM so v\u1edbi DWDM<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/980ea5a903da45debe19da9ef0ef606c.webp\" alt=\"CWDM vs. DWDM\" class=\"wp-image-5937\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/980ea5a903da45debe19da9ef0ef606c.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/980ea5a903da45debe19da9ef0ef606c-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/980ea5a903da45debe19da9ef0ef606c-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/980ea5a903da45debe19da9ef0ef606c-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/980ea5a903da45debe19da9ef0ef606c-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Kho\u1ea3ng c\u00e1ch k\u00eanh &amp; dung l\u01b0\u1ee3ng b\u01b0\u1edbc s\u00f3ng<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>CWDM<\/strong>: S\u1eed d\u1ee5ng <strong>kho\u1ea3ng c\u00e1ch 20 nm<\/strong> tr\u00ean d\u1ea3i ph\u1ed5 r\u1ed9ng (1270\u20131610 nm), h\u1ed7 tr\u1ee3 t\u1ed1i \u0111a <strong>18 k\u00eanh<\/strong>. Kho\u1ea3ng c\u00e1ch gi\u00e3n n\u00e0y cho ph\u00e9p s\u1eed d\u1ee5ng laser kh\u00f4ng l\u00e0m m\u00e1t v\u00e0 b\u1ed9 l\u1ecdc \u0111\u01a1n gi\u1ea3n h\u01a1n, gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 chi ph\u00ed.<\/p><\/li><li><p style=\"margin: 0px;\"><span class=\"qc-p1-tag\"><strong>DWDM<\/strong>: \u00c1p d\u1ee5ng kho\u1ea3ng c\u00e1ch c\u1ef1c k\u1ef3 nh\u1ecf <strong>0,8\/0,4 nm<\/strong> (l\u01b0\u1edbi 100 GHz\/50 GHz) trong d\u1ea3i C (1525\u20131565 nm) v\u00e0 d\u1ea3i L (1570\u20131610 nm), t\u00edch h\u1ee3p <strong>40\u2013160+ k\u00eanh<\/strong> tr\u00ean m\u1ed7i s\u1ee3i c\u00e1p. C\u00e1c laser l\u00e0m m\u00e1t ch\u00ednh x\u00e1c duy tr\u00ec \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh b\u01b0\u1edbc s\u00f3ng cho l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao.<\/span><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >Kho\u1ea3ng c\u00e1ch &amp; khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"text-align: left;\"><strong>CWDM<\/strong> r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c <strong>kho\u1ea3ng c\u00e1ch ng\u1eafn \u0111\u1ebfn trung b\u00ecnh<\/strong> (t\u1ed1i \u0111a kho\u1ea3ng 70\u201380 km), nh\u01b0ng th\u01b0\u1eddng kh\u00f4ng th\u1ec3 khu\u1ebfch \u0111\u1ea1i quang do kho\u1ea3ng c\u00e1ch k\u00eanh qu\u00e1 r\u1ed9ng.<\/p><\/li><li><p style=\"text-align: left;\"><strong>DWDM<\/strong>, ng\u01b0\u1ee3c l\u1ea1i, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho<strong> kho\u1ea3ng c\u00e1ch xa<\/strong> truy\u1ec1n d\u1eabn xa (h\u00e0ng tr\u0103m \u0111\u1ebfn h\u00e0ng ngh\u00ecn kil\u00f4m\u00e9t) v\u00e0 h\u1ed7 tr\u1ee3 khu\u1ebfch \u0111\u1ea1i quang nh\u01b0 EDFA trong d\u1ea3i C. <\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >Chi ph\u00ed &amp; hi\u1ec7u su\u1ea5t \u0111i\u1ec7n n\u0103ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Chi ph\u00ed l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng khi l\u1eadp k\u1ebf ho\u1ea1ch m\u1ea1ng. S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 thi\u1ebft k\u1ebf v\u00e0 hi\u1ec7u n\u0103ng gi\u1eefa CWDM v\u00e0 DWDM d\u1eabn \u0111\u1ebfn s\u1ef1 ch\u00eanh l\u1ec7ch \u0111\u00e1ng k\u1ec3 c\u1ea3 v\u1ec1 chi ph\u00ed ban \u0111\u1ea7u l\u1eabn chi ph\u00ed v\u1eadn h\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;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Y\u1ebfu t\u1ed1<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>CWDM<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>DWDM<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3n \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p h\u01a1n; ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u1ea1ng quy m\u00f4 nh\u1ecf<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n; ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u1ea1ng quy m\u00f4 l\u1edbn<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed v\u1eadn h\u00e0nh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p h\u01a1n; b\u1ea3o tr\u00ec \u0111\u01a1n gi\u1ea3n v\u00e0 ti\u00eau th\u1ee5 \u0111i\u1ec7n \u00edt h\u01a1n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n; qu\u1ea3n l\u00fd ph\u1ee9c t\u1ea1p v\u00e0 ti\u00eau th\u1ee5 \u0111i\u1ec7n nhi\u1ec1u h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed9 ph\u1ee9c t\u1ea1p thi\u1ebft b\u1ecb<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c th\u00e0nh ph\u1ea7n th\u1ee5 \u0111\u1ed9ng, \u0111\u01a1n gi\u1ea3n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c th\u00e0nh ph\u1ea7n ch\u1ee7 \u0111\u1ed9ng, ph\u1ee9c t\u1ea1p<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">CWDM cung c\u1ea5p gi\u1ea3i ph\u00e1p m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed m\u00e0 kh\u00f4ng c\u1ea7n l\u1eafp \u0111\u1eb7t th\u00eam c\u00e1p quang. B\u1ed9 thu ph\u00e1t v\u00e0 b\u1ed9 gh\u00e9p k\u00eanh c\u1ee7a n\u00f3 r\u1ebb h\u01a1n, \u0111\u1ed3ng th\u1eddi h\u1ec7 th\u1ed1ng ti\u00eau th\u1ee5 \u00edt \u0111i\u1ec7n n\u0103ng h\u01a1n. DWDM y\u00eau c\u1ea7u kho\u1ea3n \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u cao h\u01a1n do thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng v\u00e0 y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd h\u01a1n, nh\u01b0ng b\u00f9 l\u1ea1i mang l\u1ea1i kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u01b0\u1ee3t tr\u1ed9i.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px 0px 4px;\"><strong>H\u1ec7 th\u1ed1ng CWDM c\u00f3 chi ph\u00ed th\u1ea5p h\u01a1n ~50% so v\u1edbi DWDM.<\/strong> C\u00e1c kho\u1ea3n ti\u1ebft ki\u1ec7m ch\u00ednh \u0111\u1ebfn t\u1eeb:<\/p><ul><li><p style=\"margin: 0px;\">Laser kh\u00f4ng \u0111i\u1ec1u khi\u1ec3n nhi\u1ec7t \u0111\u1ed9 (0,5 W so v\u1edbi 4 W c\u1ee7a DWDM)<\/p><\/li><li><p style=\"margin: 0px;\">B\u1ed9 l\u1ecdc v\u00e0 b\u1ed9 gh\u00e9p\/kh\u1eed gh\u00e9p (mux\/demux) c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c th\u1ea5p h\u01a1n.<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px;\"><strong>Gi\u00e1 cao h\u01a1n c\u1ee7a DWDM<\/strong> ph\u1ea3n \u00e1nh quang h\u1ecdc ph\u1ee9c t\u1ea1p, b\u1ed9 khu\u1ebfch \u0111\u1ea1i EDFA v\u00e0 b\u1ed9 b\u00f9 t\u00e1n s\u1eafc d\u00e0nh cho kho\u1ea3ng c\u00e1ch truy\u1ec1n c\u1ef1c xa.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 ph\u1ee9c t\u1ea1p \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c l\u1eafp \u0111\u1eb7t, qu\u1ea3n l\u00fd v\u00e0 v\u1eadn h\u00e0nh d\u00e0i h\u1ea1n. CWDM v\u00e0 DWDM kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t \u1edf kh\u00eda c\u1ea1nh n\u00e0y.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>CWDM<\/strong> s\u1eed d\u1ee5ng c\u00e1c th\u00e0nh ph\u1ea7n th\u1ee5 \u0111\u1ed9ng v\u00e0 laser kh\u00f4ng l\u00e0m m\u00e1t, d\u1eabn \u0111\u1ebfn \u0111\u1ed9 ph\u1ee9c t\u1ea1p th\u1ea5p h\u01a1n. Vi\u1ec7c l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec \u0111\u01a1n gi\u1ea3n, \u0111\u1ed3ng th\u1eddi h\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u \u00edt \u0111i\u1ec7n n\u0103ng v\u00e0 ki\u1ec3m so\u00e1t m\u00f4i tr\u01b0\u1eddng h\u01a1n.<\/p><\/li><li><p><strong>DWDM<\/strong> s\u1eed d\u1ee5ng ph\u1ea7n c\u1ee9ng ph\u1ee9c t\u1ea1p h\u01a1n, bao g\u1ed3m laser l\u00e0m m\u00e1t v\u00e0 qu\u1ea3n l\u00fd nhi\u1ec7t \u0111\u1ed9 ch\u00ednh x\u00e1c. Kho\u1ea3ng c\u00e1ch k\u00eanh d\u00e0y \u0111\u1eb7c \u0111\u00f2i h\u1ecfi c\u1ea5u h\u00ecnh c\u1ea9n th\u1eadn v\u00e0 gi\u00e1m s\u00e1t li\u00ean t\u1ee5c. C\u00e1c h\u1ec7 th\u1ed1ng DWDM c\u0169ng y\u00eau c\u1ea7u chuy\u00ean gia c\u00f3 tr\u00ecnh \u0111\u1ed9 chuy\u00ean m\u00f4n cao \u0111\u1ec3 thi\u1ebft l\u1eadp v\u00e0 x\u1eed l\u00fd s\u1ef1 c\u1ed1.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 \u0111\u01a1n gi\u1ea3n c\u1ee7a CWDM khi\u1ebfn n\u00f3 tr\u1edf n\u00ean h\u1ea5p d\u1eabn \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ed5 ch\u1ee9c t\u00ecm ki\u1ebfm gi\u1ea3i ph\u00e1p tri\u1ec3n khai d\u1ec5 d\u00e0ng v\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh th\u1ea5p. \u0110\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a DWDM \u0111\u01b0\u1ee3c bi\u1ec7n minh b\u1edfi kh\u1ea3 n\u0103ng cung c\u1ea5p dung l\u01b0\u1ee3ng cao v\u00e0 h\u1ed7 tr\u1ee3 truy\u1ec1n t\u1ea3i b\u0103ng th\u00f4ng l\u1edbn tr\u00ean kho\u1ea3ng c\u00e1ch xa.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u1ee8ng d\u1ee5ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>CWDM th\u00edch h\u1ee3p cho:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>M\u1ea1ng doanh nghi\u1ec7p\/M\u1ea1ng khu\u00f4n vi\u00ean<\/strong>: K\u1ebft n\u1ed1i c\u00e1c t\u00f2a nh\u00e0 c\u00e1ch nhau \u226440 km.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>N\u00e2ng c\u1ea5p d\u1ef1a tr\u00ean y\u1ebfu t\u1ed1 chi ph\u00ed<\/strong>: Th\u00eam 4\u20138 k\u00eanh m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf c\u00e1p quang.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Internet v\u1ea1n v\u1eadt c\u00f4ng nghi\u1ec7p (Industrial IoT)<\/strong>: M\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t, kh\u00f4ng ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 (v\u00ed d\u1ee5: s\u00e0n nh\u00e0 m\u00e1y).<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DWDM chi\u1ebfm \u01b0u th\u1ebf:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>M\u1ea1ng l\u00f5i vi\u1ec5n th\u00f4ng<\/strong>: C\u00e1c tuy\u1ebfn \u0111\u01b0\u1eddng d\u00e0i gi\u1eefa c\u00e1c th\u00e0nh ph\u1ed1.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Trung t\u00e2m d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn<\/strong>: Li\u00ean k\u1ebft 400G+ gi\u1eefa c\u00e1c khu\u00f4n vi\u00ean.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fronthaul \/ Backhaul 5G<\/strong>: T\u00edch h\u1ee3p m\u1eadt \u0111\u1ed9 cao cho c\u00e1c \u0111\u01a1n v\u1ecb x\u1eed l\u00fd c\u01a1 s\u1edf (BBU).<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00f3m t\u1eaft<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 240px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"240\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>CWDM<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>DWDM<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"240\"><p>Kho\u1ea3ng c\u00e1ch k\u00eanh<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~20\u202fnm (th\u00f4)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>~0,8\u202fnm (m\u1eadt)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"240\"><p>S\u1ed1 k\u00eanh t\u1ed1i \u0111a<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1i \u0111a kho\u1ea3ng 18<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40\u201396+<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"240\"><p>Kho\u1ea3ng c\u00e1ch<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1i \u0111a kho\u1ea3ng 70\u201380\u202fkm, kh\u00f4ng khu\u1ebfch \u0111\u1ea1i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u00e0ng tr\u0103m \u0111\u1ebfn h\u00e0ng ngh\u00ecn km v\u1edbi khu\u1ebfch \u0111\u1ea1i<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"240\"><p>Chi ph\u00ed &amp; C\u00f4ng su\u1ea5t<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed th\u1ea5p h\u01a1n, s\u1eed d\u1ee5ng laser v\u00e0 b\u1ed9 l\u1ecdc kh\u00f4ng l\u00e0m m\u00e1t<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Chi ph\u00ed cao h\u01a1n, y\u00eau c\u1ea7u l\u00e0m m\u00e1t v\u00e0 b\u1ed9 khu\u1ebfch \u0111\u1ea1i<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"240\"><p>C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng l\u00fd t\u01b0\u1edfng<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u00f4 th\u1ecb\/truy nh\u1eadp, nhu c\u1ea7u s\u1ed1 k\u00eanh th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng l\u00f5i, m\u1ea1ng l\u00f5i ch\u00ednh, li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao v\u00e0 kho\u1ea3ng c\u00e1ch xa<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >L\u1ef1a ch\u1ecdn gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u01afu ti\u00ean CWDM n\u1ebfu b\u1ea1n c\u1ea7n:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">Tri\u1ec3n khai nhanh cho c\u00e1c li\u00ean k\u1ebft \u226480 km.<\/p><\/li><li><p style=\"margin: 0px;\">Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng ti\u1ebft ki\u1ec7m chi ph\u00ed (v\u00ed d\u1ee5: th\u00eam t\u1eebng \u0111\u1ee3t 8 k\u00eanh).<\/p><\/li><li><p style=\"margin: 0px;\">T\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c switch SFP+ hi\u1ec7n c\u00f3.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >Ch\u1ecdn DWDM khi:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\">\u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng n\u00e2ng c\u1ea5p trong t\u01b0\u01a1ng lai v\u01b0\u1ee3t m\u1ee9c 100G.<\/p><\/li><li><p style=\"margin: 0px;\">T\u1ed1i \u0111a h\u00f3a hi\u1ec7u qu\u1ea3 \u0111\u1ea7u t\u01b0 s\u1ee3i quang trong c\u00e1c \u1ed1ng d\u1eabn ch\u1eadt k\u00edn.<\/p><\/li><li><p style=\"margin: 0px;\">Y\u00eau c\u1ea7u li\u00ean k\u1ebft \u0111\u01b0\u1eddng d\u00e0i\/\u0111\u1ed9 dung l\u01b0\u1ee3ng c\u1ef1c cao.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >B\u1ed9 thu ph\u00e1t quang LINK\u2011PP: CWDM &amp; DWDM<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">LINK\u2011PP cung c\u1ea5p c\u00e1c module ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho c\u1ea3 hai c\u00f4ng ngh\u1ec7:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i quang CWDM c\u1ee7a LINK\u2011PP:<\/strong> Kh\u00e1m ph\u00e1 c\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i quang CWDM, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng truy c\u1eadp \u0111\u00f4 th\u1ecb (metro-access) \u01b0u ti\u00ean t\u00ednh \u0111\u01a1n gi\u1ea3n v\u00e0 chi ph\u00ed ph\u1ea3i ch\u0103ng \u2192 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm?ca=1484&amp;cv=8851\">M\u00f4-\u0111un CWDM c\u1ee7a LINK\u2011PP<\/a>.<\/p><\/li><li><p><strong>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i quang DWDM c\u1ee7a LINK\u2011PP:<\/strong> Cung c\u1ea5p ki\u1ec3m so\u00e1t b\u01b0\u1edbc s\u00f3ng ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t cho c\u00e1c tri\u1ec3n khai l\u00f5i m\u1ea1ng (backbone) v\u00e0 \u0111\u01b0\u1eddng truy\u1ec1n xa (long-haul) \u2192 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm?ca=1484&amp;cv=8852\">M\u00f4-\u0111un DWDM c\u1ee7a LINK\u2011PP<\/a>.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u00fd do c\u00e1c k\u1ef9 s\u01b0 tin t\u01b0\u1edfng LINK-PP<\/strong>:<br\/>\u2705 Ch\u1ea9n \u0111o\u00e1n DOM \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 gi\u00e1m s\u00e1t t\u00ecnh tr\u1ea1ng thi\u1ebft b\u1ecb theo th\u1eddi gian th\u1ef1c.<br\/>\u2705 B\u1ea3o h\u00e0nh 3 n\u0103m v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c \u0111a nh\u00e0 cung c\u1ea5p (Cisco\/Juniper\/Arista).<br\/>\u2705 Thi\u1ebft k\u1ebf \u0111\u1ed9 tr\u1ec5 th\u1ea5p d\u00e0nh cho c\u00e1c c\u1ee5m t\u00e0i ch\u00ednh\/tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >Xem Th\u00eam<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/wdm-optical-transceiver-module-applications\/\">Kh\u00e1m ph\u00e1 c\u00f4ng ngh\u1ec7 WDM v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 trong m\u1ea1ng quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ddm-dom-in-optical-transceivers\/\">T\u1ea7m quan tr\u1ecdng c\u1ee7a gi\u00e1m s\u00e1t k\u1ef9 thu\u1eadt s\u1ed1 trong c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i quang<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/dwdm-tunable-optical-transceiver-modules\/\">Gi\u1edbi thi\u1ec7u M\u1ea1ng LINK-PP v\u00e0 c\u00e1c th\u00e0nh vi\u00ean c\u1ed9ng \u0111\u1ed3ng c\u1ee7a n\u00f3<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>CWDM so v\u1edbi DWDM: Gi\u1ea3i ph\u00e1p quang h\u1ecdc \u0111\u00f4 th\u1ecb 8 k\u00eanh ti\u1ebft ki\u1ec7m chi ph\u00ed so v\u1edbi h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng d\u00e0i m\u1eadt \u0111\u1ed9 cao 96+ k\u00eanh. H\u00e3y ch\u1ecdn b\u1ed9 thu ph\u00e1t quang h\u1ecdc LINK-PP cho c\u1ea3 hai gi\u1ea3i ph\u00e1p WDM.<\/p>","protected":false},"author":1,"featured_media":5936,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5938","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=5938"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5938\/revisions"}],"predecessor-version":[{"id":11462,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5938\/revisions\/11462"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5936"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5938"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5938"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5938"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}