{"id":4214,"date":"2025-11-12T11:12:00","date_gmt":"2025-11-12T11:12:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/chromatic-dispersion-cd-in-fiber-optics-signal-impact\/"},"modified":"2026-06-22T05:11:25","modified_gmt":"2026-06-22T05:11:25","slug":"chromatic-dispersion-cd-in-fiber-optics-signal-impact","status":"publish","type":"post","link":"https:\/\/resources.l-p.com\/vi\/glossary\/chromatic-dispersion-cd-in-fiber-optics-signal-impact","title":{"rendered":"Hi\u1ec7n t\u01b0\u1ee3ng T\u00e1n s\u1eafc Kromat (CD) trong Truy\u1ec1n d\u1eabn Quang 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:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/a87866146b1e4615ba43760c869dfe1c.webp\" alt=\"What is Chromatic Dispersion\" class=\"wp-image-4212\" srcset=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/a87866146b1e4615ba43760c869dfe1c.webp 1200w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/a87866146b1e4615ba43760c869dfe1c-300x178.webp 300w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/a87866146b1e4615ba43760c869dfe1c-1024x608.webp 1024w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/a87866146b1e4615ba43760c869dfe1c-768x456.webp 768w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/a87866146b1e4615ba43760c869dfe1c-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00e1n s\u1eafc kromat (CD)<\/strong> l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng c\u01a1 b\u1ea3n trong truy\u1ec1n th\u00f4ng quang s\u1ee3i, c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh th\u00e0nh b\u1ea1i c\u1ee7a hi\u1ec7u su\u1ea5t m\u1ea1ng. Khi t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u0103ng v\u1ecdt l\u00ean 100G, 400G v\u00e0 cao h\u01a1n n\u1eefa, vi\u1ec7c hi\u1ec3u r\u00f5 CD tr\u1edf n\u00ean c\u1ef1c k\u1ef3 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi k\u1ef9 s\u01b0, chuy\u00ean gia CNTT v\u00e0 b\u1ea5t k\u1ef3 ai tham gia v\u00e0o m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd \u0111i s\u00e2u v\u00e0o <strong>t\u00e1n s\u1eafc kromat l\u00e0 g\u00ec<\/strong>, c\u00e1c lo\u1ea1i c\u1ee7a n\u00f3, t\u00e1c \u0111\u1ed9ng g\u00e2y ra v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p th\u1ef1c ti\u1ec5n\u2014bao g\u1ed3m c\u1ea3 c\u00e1ch th\u1ee9c c\u00e1c c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>optical transceivers<\/strong><\/a> nh\u01b0 nh\u1eefng s\u1ea3n ph\u1ea9m t\u1eeb <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a> c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m thi\u1ec3u \u1ea3nh h\u01b0\u1edfng c\u1ee7a n\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udd0d B\u1ea1n \u0111\u00e3 bi\u1ebft ch\u01b0a? <strong>T\u00e1n s\u1eafc s\u1eafc m\u00e0u<\/strong> ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho hi\u1ec7n t\u01b0\u1ee3ng m\u1edf r\u1ed9ng xung trong s\u1ee3i quang, l\u00e0m gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn v\u00e0 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcd1 T\u00e1n s\u1eafc Kromat l\u00e0 G\u00ec?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00e1n s\u1eafc s\u1eafc m\u00e0u<\/strong> \u0111\u1ec1 c\u1eadp \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng lan r\u1ed9ng c\u1ee7a c\u00e1c xung \u00e1nh s\u00e1ng khi ch\u00fang truy\u1ec1n qua s\u1ee3i quang do c\u00e1c b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng kh\u00e1c nhau di chuy\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau. N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, \u0111\u00e2y gi\u1ed1ng nh\u01b0 hi\u1ec7u \u1ee9ng c\u1ea7u v\u1ed3ng, khi c\u00e1c m\u00e0u (b\u01b0\u1edbc s\u00f3ng) t\u00e1ch r\u1eddi nhau, g\u00e2y m\u00e9o t\u00edn hi\u1ec7u. \u0110i\u1ec1u n\u00e0y x\u1ea3y ra v\u00ec chi\u1ebft quang c\u1ee7a th\u1ee7y tinh\u2014v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o s\u1ee3i\u2014thay \u0111\u1ed5i theo b\u01b0\u1edbc s\u00f3ng.<\/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 style=\"margin: 0px;\"><strong>Nguy\u00ean nh\u00e2n<\/strong>: S\u1ef1 thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 \u00e1nh s\u00e1ng theo b\u01b0\u1edbc s\u00f3ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u00e1c \u0111\u1ed9ng<\/strong>: Hi\u1ec7n t\u01b0\u1ee3ng m\u1edf r\u1ed9ng xung d\u1eabn \u0111\u1ebfn nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (ISI), l\u1ed7i v\u00e0 gi\u1ea3m b\u0103ng th\u00f4ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u1ea7m quan tr\u1ecdng<\/strong>: V\u00f4 c\u00f9ng quan tr\u1ecdng trong c\u00e1c h\u1ec7 th\u1ed1ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/vi\/glossary\/what-is-dwdm-explaining-dense-wavelength-division-multiplexing\/\"><strong>gh\u00e9p k\u00eanh ph\u00e2n chia theo b\u01b0\u1edbc s\u00f3ng m\u1eadt \u0111\u1ed9 cao (DWDM)<\/strong><\/a> v\u00e0 m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, trong <strong>m\u1ea1ng quang s\u1ee3i t\u1ed1c \u0111\u1ed9 cao<\/strong>, n\u1ebfu kh\u00f4ng ki\u1ec3m so\u00e1t CD, t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 suy gi\u1ea3m tr\u00ean kho\u1ea3ng c\u00e1ch ng\u1eafn ch\u1ec9 50 km.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"438\" src=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/d6a0102cd67e4ed385885d0049ad1d9c.webp\" alt=\"Chromatic Dispersion\" class=\"wp-image-4213\" srcset=\"https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/d6a0102cd67e4ed385885d0049ad1d9c.webp 1200w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/d6a0102cd67e4ed385885d0049ad1d9c-300x110.webp 300w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/d6a0102cd67e4ed385885d0049ad1d9c-1024x374.webp 1024w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/d6a0102cd67e4ed385885d0049ad1d9c-768x280.webp 768w, https:\/\/resources.l-p.com\/wp-content\/uploads\/2026\/05\/d6a0102cd67e4ed385885d0049ad1d9c-18x7.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcd1 C\u00e1c Lo\u1ea1i T\u00e1n s\u1eafc Kromat<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1n s\u1eafc kromat ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c ph\u00e2n th\u00e0nh hai lo\u1ea1i, m\u1ed7i lo\u1ea1i c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m ri\u00eang bi\u1ec7t:<\/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>Lo\u1ea1i<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>M\u00f4 t\u1ea3<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Xu\u1ea5t hi\u1ec7n Ph\u1ed5 bi\u1ebfn<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u00e1n s\u1eafc v\u1eadt li\u1ec7u<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Do chi\u1ebft quang ph\u1ee5 thu\u1ed9c b\u01b0\u1edbc s\u00f3ng c\u1ee7a v\u1eadt li\u1ec7u s\u1ee3i (v\u00ed d\u1ee5: silica).<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Standard <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/vi\/knowledge-center\/what-is-single-mode-fiber-and-how-does-it-work\/\"><strong>s\u1ee3i \u0111\u01a1n mode (SMF)<\/strong><\/a>.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u00e1n s\u1eafc c\u1ea5u tr\u00fac d\u1eabn s\u00f3ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u00e1t sinh t\u1eeb c\u1ea5u tr\u00fac h\u00ecnh h\u1ecdc c\u1ee7a s\u1ee3i, d\u1eabn \u00e1nh s\u00e1ng theo c\u00e1ch kh\u00e1c nhau t\u00f9y b\u01b0\u1edbc s\u00f3ng.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>s\u1ee3i \u0111i\u1ec1u ch\u1ec9nh t\u00e1n s\u1eafc (DSF).<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">ch\u1ea5t l\u01b0\u1ee3ng cao, t\u01b0\u01a1ng th\u00edch v\u00e0 \u0111\u00e1ng tin c\u1eady cho c\u1ea3 \u1ee9ng d\u1ee5ng Ethernet v\u00e0 OTN. <strong><em>M\u1eb9o Chuy\u00ean gia<\/em><\/strong><em>:<\/em> Trong h\u1ea7u h\u1ebft c\u00e1c m\u1ea1ng, c\u1ea3 hai lo\u1ea1i n\u00e0y \u0111\u1ec1u t\u1ed3n t\u1ea1i \u0111\u1ed3ng th\u1eddi, nh\u01b0ng t\u00e1n s\u1eafc v\u1eadt li\u1ec7u chi\u1ebfm \u01b0u th\u1ebf trong c\u00e1c s\u1ee3i th\u00f4ng th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/vi\/glossary\/polarization-mode-dispersion-in-fiber-optics\/\"><strong>t\u00e1n s\u1eafc do ph\u00e2n c\u1ef1c (PMD)<\/strong><\/a> th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn song song v\u1edbi CD, nh\u01b0ng \u0111\u00e2y l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng ri\u00eang bi\u1ec7t li\u00ean quan \u0111\u1ebfn c\u00e1c tr\u1ea1ng th\u00e1i ph\u00e2n c\u1ef1c.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcd1 T\u00e1n s\u1eafc Kromat \u1ea2nh H\u01b0\u1edfng Th\u1ebf N\u00e0o \u0110\u1ebfn M\u1ea1ng Quang S\u1ee3i?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>CD<\/strong> kh\u00f4ng ch\u1ec9 l\u00e0 v\u1ea5n \u0111\u1ec1 l\u00fd thuy\u1ebft\u2014m\u00e0 c\u00f2n c\u00f3 nh\u1eefng h\u1ec7 qu\u1ea3 th\u1ef1c t\u1ebf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Suy hao t\u00edn hi\u1ec7u<\/strong>: Hi\u1ec7n t\u01b0\u1ee3ng lan r\u1ed9ng xung khi\u1ebfn c\u00e1c bit li\u1ec1n k\u1ec1 ch\u1ed3ng l\u1ea5n l\u00ean nhau, l\u00e0m t\u0103ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/vi\/glossary\/understanding-what-is-bit-error-rate\/\"><strong>t\u1ef7 l\u1ec7 l\u1ed7i bit (BER)<\/strong><\/a>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch<\/strong>: N\u1ebfu kh\u00f4ng b\u00f9 tr\u1eeb, CD s\u1ebd gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn t\u1ed1i \u0111a. V\u00ed d\u1ee5, trong m\u1ea1ng 10G, n\u00f3 c\u00f3 th\u1ec3 gi\u1edbi h\u1ea1n ph\u1ea1m vi truy\u1ec1n t\u1edbi ~80 km tr\u00ean s\u1ee3i SMF.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>H\u1ec7 qu\u1ea3 v\u1ec1 chi ph\u00ed<\/strong>: Vi\u1ec7c kh\u1eafc ph\u1ee5c CD th\u01b0\u1eddng \u0111\u00f2i h\u1ecfi th\u00eam c\u00e1c th\u00e0nh ph\u1ea7n ph\u1ee5 tr\u1ee3, l\u00e0m t\u0103ng chi ph\u00ed tri\u1ec3n khai.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udcc9 Trong <strong>h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng quang \u0111\u01b0\u1eddng d\u00e0i<\/strong>, CD c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t m\u1ea1ng t\u1edbi 30% n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd. \u0110\u00e2y ch\u00ednh l\u00e0 l\u00fac c\u00e1c chi\u1ebfn l\u01b0\u1ee3c <strong>b\u00f9 t\u00e1n s\u1eafc kromat<\/strong> tr\u1edf n\u00ean thi\u1ebft y\u1ebfu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcd1 C\u00e1c Ph\u01b0\u01a1ng Ph\u00e1p B\u00f9 T\u00e1n s\u1eafc Kromat<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 ch\u1ed1ng l\u1ea1i CD, k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng nhi\u1ec1u k\u1ef9 thu\u1eadt kh\u00e1c nhau. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u1ed5ng quan nhanh:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>S\u1ee3i b\u00f9 t\u00e1n s\u1eafc (DCF)<\/strong>: M\u1ed9t lo\u1ea1i s\u1ee3i chuy\u00ean d\u1ee5ng c\u00f3 t\u00e1n s\u1eafc \u00e2m nh\u1eb1m b\u00f9 tr\u1eeb CD trong s\u1ee3i ti\u00eau chu\u1ea9n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>M\u1ea1ng Bragg quang (FBGs)<\/strong>: C\u00e1c b\u1ed9 l\u1ecdc quang ph\u1ea3n x\u1ea1 c\u00e1c b\u01b0\u1edbc s\u00f3ng c\u1ee5 th\u1ec3 \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh t\u00e1n s\u1eafc.<\/p><\/li><li><p style=\"margin: 0px;\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resources.l-p.com\/vi\/glossary\/digital-signal-processor-functionality-in-optical-transceivers\/\"><strong>X\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1 (DSP)<\/strong><\/a>: C\u00e1c thu\u1eadt to\u00e1n trong b\u1ed9 thu ph\u00e1t quang th\u1ef1c hi\u1ec7n b\u00f9 tr\u1eeb CD b\u1eb1ng \u0111i\u1ec7n t\u1eed.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>B\u1ed9 thu ph\u00e1t quang t\u00edch h\u1ee3p ch\u1ee9c n\u0103ng b\u00f9 tr\u1eeb<\/strong>: C\u00e1c module hi\u1ec7n \u0111\u1ea1i t\u00edch h\u1ee3p tr\u1ef1c ti\u1ebfp kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd CD.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u2705 \u0110\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u, vi\u1ec7c k\u1ebft h\u1ee3p nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong <strong>trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao<\/strong> and <strong>m\u1ea1ng vi\u1ec5n th\u00f4ng<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcd1 Vai Tr\u00f2 c\u1ee7a B\u1ed9 Thu Ph\u00e1t Quang trong Qu\u1ea3n L\u00fd T\u00e1n s\u1eafc Kromat<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>B\u1ed9 thu ph\u00e1t quang<\/strong><\/a> l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a m\u1ea1ng quang, th\u1ef1c hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n sang \u00e1nh s\u00e1ng v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. C\u00e1c b\u1ed9 thu ph\u00e1t quang ti\u00ean ti\u1ebfn ng\u00e0y nay v\u01b0\u1ee3t xa ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n\u2014ch\u00fang t\u00edch h\u1ee3p c\u00e1c t\u00ednh n\u0103ng \u0111\u1ec3 x\u1eed l\u00fd \u0111\u1ed9ng hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc kromat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch B\u1ed9 Thu Ph\u00e1t H\u1ed7 Tr\u1ee3<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>B\u1ed9 x\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1 (DSP) t\u00edch h\u1ee3p<\/strong>: Nhi\u1ec1u <strong>C\u00e1c c\u00f4ng ty nh\u01b0<\/strong> s\u1eed d\u1ee5ng chip DSP \u0111\u1ec3 ti\u1ec1n x\u1eed l\u00fd v\u00e0 h\u1eadu x\u1eed l\u00fd t\u00edn hi\u1ec7u, b\u00f9 tr\u1eeb CD theo th\u1eddi gian th\u1ef1c.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Laser \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c b\u01b0\u1edbc s\u00f3ng<\/strong>: Cho ph\u00e9p \u0111i\u1ec1u ch\u1ec9nh b\u01b0\u1edbc s\u00f3ng nh\u1eb1m gi\u1ea3m thi\u1ec3u \u1ea3nh h\u01b0\u1edfng c\u1ee7a t\u00e1n s\u1eafc.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>C\u00f4ng ngh\u1ec7 \u0111\u1ed3ng pha<\/strong>: Trong c\u00e1c b\u1ed9 thu ph\u00e1t \u0111\u1ed3ng pha, CD \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd th\u00f4ng qua c\u00e1c s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf tinh vi.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83c\udf1f <strong>T\u1eadp trung v\u00e0o Gi\u1ea3i ph\u00e1p LINK-PP<\/strong>:<br\/><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a>\u2019b\u1ed9 thu ph\u00e1t quang c\u1ee7a <strong>400G-ZR+ \u0111\u1ed3ng pha<\/strong> t\u1eadn d\u1ee5ng DSP ti\u00ean ti\u1ebfn v\u00e0 quang h\u1ecdc \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c \u0111\u1ec3 mang l\u1ea1i hi\u1ec7u n\u0103ng m\u1ea1nh m\u1ebd trong m\u00f4i tr\u01b0\u1eddng d\u1ec5 b\u1ecb t\u00e1n s\u1eafc. M\u1eabu n\u00e0y h\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eabn l\u00ean t\u1edbi 120 km v\u1edbi BER t\u1ed1i thi\u1ec3u, r\u1ea5t ph\u00f9 h\u1ee3p cho <strong>\u1ee9ng d\u1ee5ng \u0111\u00f4 th\u1ecb v\u00e0 \u0111\u01b0\u1eddng d\u00e0i<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By choosing <strong>LINK-PP<\/strong> s\u1ea3n ph\u1ea9m, b\u1ea1n \u0111ang \u0111\u1ea7u t\u01b0 v\u00e0o \u0111\u1ed9 tin c\u1eady v\u00e0 kh\u1ea3 n\u0103ng n\u00e2ng c\u1ea5p m\u1ea1ng trong t\u01b0\u01a1ng lai tr\u01b0\u1edbc c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn CD.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcd1 K\u1ebft lu\u1eadn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00e1n s\u1eafc s\u1eafc m\u00e0u<\/strong> l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c then ch\u1ed1t trong l\u0129nh v\u1ef1c quang s\u1ee3i, nh\u01b0ng v\u1edbi ki\u1ebfn th\u1ee9c v\u00e0 c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p, n\u00f3 ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c. T\u1eeb vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c lo\u1ea1i t\u00e1n s\u1eafc \u0111\u1ebfn tri\u1ec3n khai c\u00e1c ph\u01b0\u01a1ng ph\u00e1p b\u00f9 tr\u1eeb nh\u01b0 trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>transceiver quang h\u1ecdc LINK-PP<\/strong><\/a>, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, kh\u00f4ng l\u1ed7i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\ude80 <strong>\u0110\u00e3 S\u1eb5n S\u00e0ng T\u1ed1i \u01afu H\u00f3a M\u1ea1ng C\u1ee7a B\u1ea1n Ch\u01b0a?<\/strong><br\/>Kh\u00e1m ph\u00e1 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a>\u2019lo\u1ea1t b\u1ed9 thu ph\u00e1t quang ch\u1ecbu t\u00e1n s\u1eafc c\u1ee7a <strong>b\u1ed9 thu ph\u00e1t LINK-PP 400G-ZR+<\/strong>, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch v\u00e0 mang l\u1ea1i hi\u1ec7u n\u0103ng v\u01b0\u1ee3t tr\u1ed9i.<strong> <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/contactus.htm\"><strong>Li\u00ean h\u1ec7 ngay v\u1edbi c\u00e1c chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i h\u00f4m nay<\/strong><\/a> \u0111\u1ec3 t\u00ecm hi\u1ec3u c\u00e1ch ch\u00fang t\u00f4i c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n v\u01b0\u1ee3t qua c\u00e1c th\u00e1ch th\u1ee9c do t\u00e1n s\u1eafc kromat g\u00e2y ra!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcd1 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00e1n s\u1eafc kromat trong truy\u1ec1n d\u1eabn quang l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e1n s\u1eafc l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng c\u00e1c m\u00e0u di chuy\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau trong s\u1ee3i quang. \u0110i\u1ec1u n\u00e0y khi\u1ebfn xung \u00e1nh s\u00e1ng b\u1ecb lan r\u1ed9ng. C\u00e1c t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 tr\u1edf n\u00ean kh\u00f3 \u0111\u1ecdc h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00e1n s\u1eafc g\u00e2y ra nh\u1eefng v\u1ea5n \u0111\u1ec1 g\u00ec?<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>T\u00e1n s\u1eafc c\u00f3 th\u1ec3 l\u00e0m m\u1edd t\u00edn hi\u1ec7u. B\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p l\u1ed7i d\u1eef li\u1ec7u ho\u1eb7c t\u1ed1c \u0111\u1ed9 gi\u1ea3m. C\u00e1c t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 ch\u1ed3ng l\u1ea5n l\u00ean nhau, khi\u1ebfn m\u1ea1ng c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" >Lo\u1ea1i s\u1ee3i quang n\u00e0o b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi t\u00e1n s\u1eafc?<\/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>Lo\u1ea1i s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u1ea2nh h\u01b0\u1edfng c\u1ee7a t\u00e1n s\u1eafc (CD)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01a1n ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u00e1n s\u1eafc \u00edt h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\u0110a ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u00e1n s\u1eafc nhi\u1ec1u h\u01a1n<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i \u0111a mode g\u1eb7p nhi\u1ec1u v\u1ea5n \u0111\u1ec1 h\u01a1n v\u1edbi t\u00e1n s\u1eafc.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m g\u00ec \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u00e1n s\u1eafc?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra t\u00e1n s\u1eafc b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng. S\u1eed d\u1ee5ng s\u1ee3i b\u00f9 t\u00e1n s\u1eafc ho\u1eb7c c\u00e1c module b\u00f9 t\u00e1n s\u1eafc \u0111\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng lan r\u1ed9ng. Lu\u00f4n ki\u1ec3m tra m\u1ea1ng c\u1ee7a b\u1ea1n sau khi th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 thay \u0111\u1ed5i n\u00e0o.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu b\u1ea1n b\u1ecf qua t\u00e1n s\u1eafc?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n b\u1ecf qua t\u00e1n s\u1eafc, m\u1ea1ng c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 ch\u1eadm l\u1ea1i. T\u00edn hi\u1ec7u c\u00f3 th\u1ec3 kh\u00f4ng r\u00f5 r\u00e0ng. B\u1ea1n c\u00f3 th\u1ec3 m\u1ea5t d\u1eef li\u1ec7u ho\u1eb7c g\u1eb7p nhi\u1ec1u l\u1ed7i h\u01a1n.<\/p>","protected":false},"excerpt":{"rendered":"<p>S\u1ef1 t\u00e1n s\u1eafc quang h\u1ecdc (Chromatic Dispersion \u2013 CD) trong s\u1ee3i quang g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng lan r\u1ed9ng t\u00edn hi\u1ec7u, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 r\u00f5 n\u00e9t v\u00e0 t\u1ed1c \u0111\u1ed9. T\u00ecm hi\u1ec3u c\u00e1ch CD t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn m\u1ea1ng v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p qu\u1ea3n l\u00fd n\u00f3.<\/p>","protected":false},"author":1,"featured_media":4212,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[24,26],"class_list":["post-4214","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-link-pp","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/posts\/4214","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/comments?post=4214"}],"version-history":[{"count":4,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/posts\/4214\/revisions"}],"predecessor-version":[{"id":10893,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/posts\/4214\/revisions\/10893"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/media\/4212"}],"wp:attachment":[{"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/media?parent=4214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/categories?post=4214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resources.l-p.com\/vi\/wp-json\/wp\/v2\/tags?post=4214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}