{"id":4204,"date":"2025-11-12T00:00:00","date_gmt":"2025-11-12T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/dispersion-compensation-in-optical-systems-explained\/"},"modified":"2026-06-22T05:13:03","modified_gmt":"2026-06-22T05:13:03","slug":"dispersion-compensation-in-optical-systems-explained","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/dispersion-compensation-in-optical-systems-explained","title":{"rendered":"B\u00f9 tr\u1eeb t\u00e1n s\u1eafc trong h\u1ec7 th\u1ed1ng 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:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03978ecb6b844a4cb9e1e609110c1f64.webp\" alt=\"What Is Dispersion Compensation in Optical Systems\" class=\"wp-image-4202\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03978ecb6b844a4cb9e1e609110c1f64.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03978ecb6b844a4cb9e1e609110c1f64-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03978ecb6b844a4cb9e1e609110c1f64-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03978ecb6b844a4cb9e1e609110c1f64-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/03978ecb6b844a4cb9e1e609110c1f64-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ebf gi\u1edbi si\u00eau k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang ta, nhu c\u1ea7u v\u1ec1 vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u nhanh h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n l\u00e0 kh\u00f4ng ng\u1eebng ngh\u1ec9. \u1ede trung t\u00e2m c\u1ee7a cu\u1ed9c c\u00e1ch m\u1ea1ng k\u1ef9 thu\u1eadt s\u1ed1 n\u00e0y l\u00e0 c\u00f4ng ngh\u1ec7 truy\u1ec1n th\u00f4ng s\u1ee3i quang \u2014 m\u1ed9t c\u00f4ng ngh\u1ec7 s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng \u0111\u1ec3 truy\u1ec1n l\u01b0\u1ee3ng th\u00f4ng tin kh\u1ed5ng l\u1ed3 tr\u00ean kho\u1ea3ng c\u00e1ch xa. Tuy nhi\u00ean, ngay c\u1ea3 \u00e1nh s\u00e1ng c\u0169ng kh\u00f4ng ho\u00e0n h\u1ea3o. Khi di chuy\u1ec3n qua s\u1ee3i quang, \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 b\u1ecb \u201cm\u1edd \u0111i\u201d, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/dispersion-in-optical-transceiver-signal-clarity-and-management\/\"><strong>\u0111\u1ed9 t\u00e1n s\u1eafc<\/strong><\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i \u0111\u0103ng blog n\u00e0y s\u1ebd l\u00e0 h\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n d\u00e0nh cho b\u1ea1n v\u1ec1 <strong>b\u00f9 t\u00e1n s\u1eafc<\/strong>\u2014 m\u1ed9t c\u00f4ng ngh\u1ec7 then ch\u1ed1t gi\u00fap l\u00e0m r\u00f5 hi\u1ec7n t\u01b0\u1ee3ng m\u1edd n\u00e0y v\u00e0 \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n \u0111\u1ebfn \u0111\u00edch nguy\u00ean v\u1eb9n. Ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch khoa h\u1ecdc ph\u1ee9c t\u1ea1p th\u00e0nh nh\u1eefng kh\u00e1i ni\u1ec7m d\u1ec5 hi\u1ec3u, kh\u00e1m ph\u00e1 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p b\u00f9 kh\u00e1c nhau v\u00e0 l\u00e0m n\u1ed5i b\u1eadt vai tr\u00f2 then ch\u1ed1t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i <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>.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>N\u1ebfu b\u1ea1n kh\u00f4ng kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9, t\u00edn hi\u1ec7u c\u1ee7a b\u1ea1n s\u1ebd tr\u1edf n\u00ean m\u1edd v\u00e0 k\u00e9m ch\u00ednh x\u00e1c h\u01a1n.<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2699\ufe0f Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>B\u00f9 t\u00e1n s\u1eafc<\/strong> gi\u00fap gi\u1eef t\u00edn hi\u1ec7u quang lu\u00f4n r\u00f5 n\u00e9t. N\u00f3 ki\u1ec3m so\u00e1t hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9 \u2014 v\u1ed1n c\u00f3 th\u1ec3 khi\u1ebfn t\u00edn hi\u1ec7u b\u1ecb m\u1edd.<\/p><\/li><li><p>C\u00e1c lo\u1ea1i s\u1ee3i \u0111\u1eb7c bi\u1ec7t, m\u1ea1ng Bragg s\u1ee3i quang ho\u1eb7c c\u00f4ng c\u1ee5 k\u1ef9 thu\u1eadt s\u1ed1 c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9. Nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u.<\/p><\/li><li><p>B\u1ea1n n\u00ean th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9 trong c\u00e1c h\u1ec7 th\u1ed1ng quang c\u1ee7a m\u00ecnh. Vi\u1ec7c n\u00e0y gi\u00fap ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng ch\u1ed3ng l\u1ea5n t\u00edn hi\u1ec7u v\u00e0 gi\u1ea3m thi\u1ec3u sai s\u00f3t trong d\u1eef li\u1ec7u.<\/p><\/li><li><p>H\u00e3y l\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p b\u00f9 ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi y\u00eau c\u1ea7u c\u1ee7a h\u1ec7 th\u1ed1ng b\u1ea1n. \u0110i\u1ec1u n\u00e0y gi\u00fap h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng truy\u1ec1n th\u00f4ng r\u00f5 r\u00e0ng.<\/p><\/li><li><p>Vi\u1ec7c b\u00f9 t\u00e1n s\u1eafc t\u1ed1t h\u1ed7 tr\u1ee3 truy\u1ec1n th\u00f4ng kho\u1ea3ng c\u00e1ch xa v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng laser si\u00eau nhanh. \u0110i\u1ec1u \u0111\u00f3 \u0111\u1ed3ng ngh\u0129a v\u1edbi \u00edt sai s\u00f3t h\u01a1n v\u00e0 k\u1ebft qu\u1ea3 t\u1ed1t h\u01a1n.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2699\ufe0f Hi\u1ec3u r\u00f5 v\u1ea5n \u0111\u1ec1: Hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc quang l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng m\u1ed9t cu\u1ed9c \u0111ua marathon, n\u01a1i t\u1ea5t c\u1ea3 c\u00e1c v\u1eadn \u0111\u1ed9ng vi\u00ean xu\u1ea5t ph\u00e1t c\u00f9ng m\u1ed9t l\u00fac. Tr\u00ean qu\u00e3ng \u0111\u01b0\u1eddng d\u00e0i, nh\u1eefng ng\u01b0\u1eddi ch\u1ea1y nhanh h\u01a1n s\u1ebd v\u01b0\u1ee3t l\u00ean ph\u00eda tr\u01b0\u1edbc, c\u00f2n nh\u1eefng ng\u01b0\u1eddi ch\u1eadm h\u01a1n s\u1ebd t\u1ee5t l\u1ea1i ph\u00eda sau, khi\u1ebfn nh\u00f3m ch\u1ea1y b\u1ecb t\u1ea3n ra. M\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng t\u01b0\u01a1ng t\u1ef1 x\u1ea3y ra v\u1edbi c\u00e1c xung \u00e1nh s\u00e1ng trong s\u1ee3i quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/dispersion-in-optical-transceiver-signal-clarity-and-management\/\"><strong>Hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc quang<\/strong><\/a> l\u00e0 s\u1ef1 lan r\u1ed9ng c\u1ee7a m\u1ed9t xung \u00e1nh s\u00e1ng khi n\u00f3 di chuy\u1ec3n d\u1ecdc theo s\u1ee3i quang. S\u1ef1 lan r\u1ed9ng n\u00e0y khi\u1ebfn c\u00e1c xung li\u1ec1n k\u1ec1 ch\u1ed3ng l\u1ea5n l\u00ean nhau, g\u00e2y kh\u00f3 kh\u0103n cho b\u1ed9 thu trong vi\u1ec7c ph\u00e2n bi\u1ec7t gi\u1eefa bit \u20181\u2019 v\u00e0 bit \u20180\u2019. K\u1ebft qu\u1ea3 l\u00e0 g\u00ec? <strong>Suy gi\u1ea3m t\u00edn hi\u1ec7u, ph\u00e1t sinh l\u1ed7i v\u00e0 gi\u1edbi h\u1ea1n nghi\u00eam tr\u1ecdng c\u1ea3 v\u1ec1 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn l\u1eabn t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 hai lo\u1ea1i t\u00e1n s\u1eafc ch\u00ednh m\u00e0 k\u1ef9 s\u01b0 m\u1ea1ng ph\u1ea3i \u0111\u1ed1i ph\u00f3:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/chromatic-dispersion-cd-in-fiber-optics-signal-impact\/\"><strong>T\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9 (CD)<\/strong><\/a><strong>:<\/strong> \u0110\u00e2y l\u00e0 d\u1ea1ng ph\u1ed5 bi\u1ebfn nh\u1ea5t. V\u00ec \u00e1nh s\u00e1ng tr\u1eafng g\u1ed3m nhi\u1ec1u m\u00e0u (b\u01b0\u1edbc s\u00f3ng) kh\u00e1c nhau, v\u00e0 m\u1ed7i b\u01b0\u1edbc s\u00f3ng di chuy\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 h\u01a1i kh\u00e1c nhau trong th\u1ee7y tinh, n\u00ean xung \u00e1nh s\u00e1ng b\u1ecb lan r\u1ed9ng theo th\u1eddi gian. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y gi\u1ed1ng nh\u01b0 m\u1ed9t l\u0103ng k\u00ednh t\u00e1ch \u00e1nh s\u00e1ng tr\u1eafng th\u00e0nh c\u1ea7u v\u1ed3ng.<\/p><\/li><li><p style=\"margin: 0px;\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/polarization-mode-dispersion-in-fiber-optics\/\"><strong>PMD (Ph\u00e2n t\u00e1n ch\u1ebf \u0111\u1ed9 ph\u00e2n c\u1ef1c)<\/strong><\/a><strong>:<\/strong> M\u1ed9t hi\u1ec7u \u1ee9ng ph\u1ee9c t\u1ea1p h\u01a1n, trong \u0111\u00f3 hai tr\u1ea1ng th\u00e1i ph\u00e2n c\u1ef1c c\u1ee7a \u00e1nh s\u00e1ng di chuy\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau do c\u00e1c khuy\u1ebft t\u1eadt v\u00e0 b\u1ea5t \u0111\u1ed1i x\u1ee9ng trong l\u00f5i s\u1ee3i quang. Hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc ph\u00e2n c\u1ef1c (PMD) ng\u00e0y c\u00e0ng tr\u1edf n\u00ean quan tr\u1ecdng \u1edf t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao (40G, 100G v\u00e0 cao h\u01a1n).<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2699\ufe0f Gi\u1ea3i ph\u00e1p: C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u00f9 t\u00e1n s\u1eafc<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u00f9 t\u00e1n s\u1eafc<\/strong> l\u00e0 qu\u00e1 tr\u00ecnh ch\u1ee7 \u00fd \u0111\u1ea3o ng\u01b0\u1ee3c c\u00e1c hi\u1ec7u \u1ee9ng l\u00e0m r\u1ed9ng xung do hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc g\u00e2y ra. M\u1ee5c ti\u00eau l\u00e0 t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng t\u00e1n s\u1eafc b\u1eb1ng v\u1ec1 \u0111\u1ed9 l\u1edbn nh\u01b0ng ng\u01b0\u1ee3c d\u1ea5u, t\u1eeb \u0111\u00f3 \u201cn\u00e9n l\u1ea1i\u201d xung \u00e1nh s\u00e1ng v\u1ec1 h\u00ecnh d\u1ea1ng ban \u0111\u1ea7u, r\u00f5 n\u00e9t tr\u01b0\u1edbc khi \u0111\u1ebfn b\u1ed9 thu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y coi \u0111\u00e2y nh\u01b0 vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t th\u1ea5u k\u00ednh \u0111i\u1ec1u ch\u1ec9nh cho h\u1ec7 th\u1ed1ng s\u1ee3i quang c\u1ee7a b\u1ea1n. N\u1ebfu s\u1ee3i quang l\u00e0m lan r\u1ed9ng ch\u00f9m \u00e1nh s\u00e1ng, th\u00ec b\u1ed9 b\u00f9 s\u1ebd t\u00e1i h\u1ed9i t\u1ee5 l\u1ea1i n\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho m\u1ee5c \u0111\u00edch n\u00e0y:<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"339\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c2fe5935b504de8a142b8ebc2cbc468.webp\" alt=\"Dispersion Compensation\" class=\"wp-image-4203\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c2fe5935b504de8a142b8ebc2cbc468.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c2fe5935b504de8a142b8ebc2cbc468-300x85.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c2fe5935b504de8a142b8ebc2cbc468-1024x289.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c2fe5935b504de8a142b8ebc2cbc468-768x217.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c2fe5935b504de8a142b8ebc2cbc468-18x5.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c k\u1ef9 thu\u1eadt b\u00f9 t\u00e1n s\u1eafc ph\u1ed5 bi\u1ebfn<\/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>Ph\u01b0\u01a1ng ph\u00e1p<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ee3i b\u00f9 t\u00e1n s\u1eafc (DCF)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed9t lo\u1ea1i s\u1ee3i \u0111\u1eb7c bi\u1ec7t c\u00f3 h\u1ec7 s\u1ed1 t\u00e1n s\u1eafc \u00e2m l\u1edbn. N\u00f3 \u0111\u01b0\u1ee3c n\u1ed1i gh\u00e9p v\u00e0o \u0111\u01b0\u1eddng truy\u1ec1n nh\u1eb1m b\u00f9 l\u1ea1i t\u00e1n s\u1eafc d\u01b0\u01a1ng c\u1ee7a s\u1ee3i ti\u00eau chu\u1ea9n.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>\u2705 \u01afu \u0111i\u1ec3m:<\/strong> Kh\u1ea3 n\u0103ng b\u00f9 cao, c\u00f4ng ngh\u1ec7 \u0111\u00e3 tr\u01b0\u1edfng th\u00e0nh.<br\/><strong>\u274c Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> T\u1ed5n hao cao, ph\u00e1t sinh hi\u1ec7u \u1ee9ng phi tuy\u1ebfn, c\u1ed3ng k\u1ec1nh v\u00e0 \u0111\u1eaft \u0111\u1ecf.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>M\u1ea1ng Bragg S\u1ee3i Quang (FBG)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed9t \u0111o\u1ea1n s\u1ee3i ng\u1eafn c\u00f3 s\u1ef1 bi\u1ebfn thi\u00ean \u0111\u1ecbnh k\u1ef3 v\u1ec1 chi\u1ebft quang. N\u00f3 ph\u1ea3n x\u1ea1 c\u00e1c b\u01b0\u1edbc s\u00f3ng c\u1ee5 th\u1ec3 t\u1ea1i nh\u1eefng th\u1eddi \u0111i\u1ec3m kh\u00e1c nhau, t\u1eeb \u0111\u00f3 t\u00e1i c\u0103n ch\u1ec9nh xung.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>\u2705 \u01afu \u0111i\u1ec3m:<\/strong> T\u1ed5n hao th\u1ea5p, k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn, ho\u1ea1t \u0111\u1ed9ng th\u1ee5 \u0111\u1ed9ng.<br\/><strong>\u274c Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> Nh\u1ea1y c\u1ea3m v\u1edbi nhi\u1ec7t \u0111\u1ed9, b\u0103ng th\u00f4ng gi\u1edbi h\u1ea1n.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/digital-signal-processor-functionality-in-optical-transceivers\/\"><strong>X\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1 (DSP)<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec7n t\u1eed. T\u00edn hi\u1ec7u quang b\u1ecb m\u00e9o \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i sang t\u00edn hi\u1ec7u \u0111i\u1ec7n, sau \u0111\u00f3 c\u00e1c thu\u1eadt to\u00e1n ti\u00ean ti\u1ebfn trong chip x\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1 (DSP) c\u1ee7a b\u1ed9 thu \u0111\u1ea3o ng\u01b0\u1ee3c hi\u1ec7u \u1ee9ng t\u00e1n s\u1eafc m\u1ed9t c\u00e1ch k\u1ef9 thu\u1eadt s\u1ed1.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>\u2705 \u01afu \u0111i\u1ec3m:<\/strong> Linh ho\u1ea1t cao, c\u00f3 th\u1ec3 th\u00edch nghi v\u1edbi c\u00e1c m\u1ee9c \u0111\u1ed9 t\u00e1n s\u1eafc kh\u00e1c nhau, t\u00edch h\u1ee3p s\u1eb5n trong c\u00e1c module thu ph\u00e1t hi\u1ec7n \u0111\u1ea1i.<br\/><strong>\u274c Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> Y\u00eau c\u1ea7u ngu\u1ed3n c\u1ea5p \u0111i\u1ec7n, l\u00e0m t\u0103ng chi ph\u00ed v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p cho module thu ph\u00e1t.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>B\u00f9 t\u00e1n s\u1eafc \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Phi\u00ean b\u1ea3n \u0111\u1ed9ng c\u1ee7a m\u1ea1ng Bragg s\u1ee3i quang ho\u1eb7c c\u00e1c c\u00f4ng ngh\u1ec7 kh\u00e1c, c\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh l\u01b0\u1ee3ng b\u00f9 theo th\u1eddi gian th\u1ef1c \u2014 r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c m\u1ea1ng c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh l\u1ea1i.<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><strong>\u2705 \u01afu \u0111i\u1ec3m:<\/strong> Th\u00edch nghi v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n m\u1ea1ng thay \u0111\u1ed5i.<br\/><strong>\u274c Nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/strong> Ph\u1ee9c t\u1ea1p v\u00e0 t\u1ed1n k\u00e9m h\u01a1n c\u00e1c gi\u1ea3i ph\u00e1p c\u1ed1 \u0111\u1ecbnh.<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Khi l\u1eadp k\u1ebf ho\u1ea1ch m\u1ea1ng, vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang <strong>chi\u1ebfn l\u01b0\u1ee3c b\u00f9 t\u00e1n s\u1eafc<\/strong> l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u <strong>truy\u1ec1n d\u1eabn d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/strong> v\u00e0 gi\u1ea3m thi\u1ec3u <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-what-is-bit-error-rate\/\"><strong>t\u1ef7 l\u1ec7 l\u1ed7i bit (BER)<\/strong><\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2699\ufe0f L\u00f5i c\u1ee7a m\u1ea1ng: Module quang v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 n\u01a1i l\u00fd thuy\u1ebft g\u1eb7p th\u1ef1c ti\u1ec5n. <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>M\u00f4-\u0111un quang<\/strong><\/a> (ho\u1eb7c module thu ph\u00e1t) l\u00e0 nh\u1eefng th\u00e0nh ph\u1ea7n ch\u1ee7 l\u1ef1c th\u1ef1c hi\u1ec7n ch\u1ee9c n\u0103ng chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n sang quang v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. Trong c\u00e1c m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao, ch\u00fang kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i; m\u00e0 l\u00e0 nh\u1eefng thi\u1ebft b\u1ecb th\u00f4ng minh t\u00edch h\u1ee3p \u0111i\u1ec7n t\u1eed v\u00e0 quang h\u1ecdc tinh vi nh\u1eb1m qu\u1ea3n l\u00fd \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u \u2014 bao g\u1ed3m c\u1ea3 hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module quang \u0111\u1ed3ng pha hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng module d\u00f9ng cho <strong>c\u00e1c \u1ee9ng d\u1ee5ng m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i v\u00e0 m\u1ea1ng \u0111\u00f4 th\u1ecb<\/strong>, c\u00f3 <strong>b\u00f9 t\u00e1n s\u1eafc<\/strong> kh\u1ea3 n\u0103ng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c b\u1ed9 x\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1 (DSP) b\u00ean trong m\u00f4-\u0111un. Vi\u1ec7c t\u00edch h\u1ee3p n\u00e0y l\u00e0 m\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 mang t\u00ednh c\u00e1ch m\u1ea1ng. Thay v\u00ec ph\u1ee5 thu\u1ed9c v\u00e0o h\u00e0ng kil\u00f4m\u00e9t s\u1ee3i quang b\u00f9 t\u00e1n s\u1eafc c\u1ed3ng k\u1ec1nh (DCF) \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t ngo\u00e0i tr\u1eddi, m\u1ed9t ph\u1ea7n \u0111\u00e1ng k\u1ec3 c\u00f4ng vi\u1ec7c b\u00f9 t\u00e1n s\u1eafc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111i\u1ec7n t\u1eed ngay b\u00ean trong ch\u00ednh m\u00f4-\u0111un. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y \u0111\u01a1n gi\u1ea3n h\u00f3a thi\u1ebft k\u1ebf m\u1ea1ng, gi\u1ea3m di\u1ec7n t\u00edch chi\u1ebfm ch\u1ed7 v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng, \u0111\u1ed3ng th\u1eddi mang l\u1ea1i \u0111\u1ed9 linh ho\u1ea1t ch\u01b0a t\u1eebng c\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c ki\u1ebfn tr\u00fac s\u01b0 m\u1ea1ng \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady, vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang m\u00f4-\u0111un l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t. \u0110\u00e2y l\u00e0 n\u01a1i chuy\u00ean m\u00f4n c\u1ee7a <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a> ph\u00e1t huy t\u00e1c d\u1ee5ng. <strong>LINK-PP<\/strong>\u2018c\u00e1c b\u1ed9 thu ph\u00e1t quang h\u1ecdc c\u1ee7a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/digital-signal-processor-functionality-in-optical-transceivers\/\"><strong>c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1 (DSP) ti\u00ean ti\u1ebfn<\/strong><\/a> cung c\u1ea5p kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng t\u00e1n s\u1eafc m\u1ea1nh m\u1ebd, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng d\u1ec5 b\u1ecb t\u00e1n s\u1eafc v\u00e0 \u0111\u1ea7y th\u00e1ch th\u1ee9c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, b\u1ed9 thu ph\u00e1t <strong>CFP2-DCO-400G<\/strong> b\u1ed9 thu ph\u00e1t quang h\u1ecdc k\u1ebft h\u1ee3p (coherent transceiver) l\u00e0 m\u1ed9t v\u00ed d\u1ee5 ti\u00eau bi\u1ec3u cho c\u00f4ng ngh\u1ec7 n\u00e0y trong th\u1ef1c t\u1ebf. \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng 400G, m\u00f4-\u0111un n\u00e0y s\u1edf h\u1eefu m\u1ed9t vi m\u1ea1ch ASIC DSP m\u1ea1nh m\u1ebd v\u00e0 \u0111\u1ed9c quy\u1ec1n, th\u1ef1c hi\u1ec7n b\u00f9 t\u00e1n s\u1eafc theo th\u1eddi gian th\u1ef1c cho c\u1ea3 hai lo\u1ea1i <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/chromatic-dispersion-cd-in-fiber-optics-signal-impact\/\"><strong>T\u00e1n s\u1eafc s\u1eafc \u0111\u1ed9<\/strong><\/a> and <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/polarization-mode-dispersion-in-fiber-optics\/\"><strong>\u0110\u1ed9 t\u00e1n s\u1eafc ph\u00e2n c\u1ef1c (Polarization Mode Dispersion \u2013 PMD)<\/strong><\/a>. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p m\u00f4-\u0111un ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang hi\u1ec7n c\u00f3 m\u00e0 kh\u00f4ng c\u1ea7n c\u00e1c thi\u1ebft b\u1ecb b\u00f9 t\u00e1n s\u1eafc b\u00ean ngo\u00e0i quy m\u00f4 l\u1edbn, gi\u00fap n\u00e2ng c\u1ea5p m\u1ea1ng c\u1ee7a b\u1ea1n v\u1eeba ti\u1ebft ki\u1ec7m chi ph\u00ed v\u1eeba \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng cho t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p style=\"margin: 0px;\"><strong>M\u1eb9o chuy\u00ean gia:<\/strong> Khi \u0111\u00e1nh gi\u00e1 <strong>m\u00f4-\u0111un quang h\u1ecdc d\u00e0nh cho m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao<\/strong>, h\u00e3y lu\u00f4n ki\u1ec3m tra th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u1ec1 <strong>kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng t\u00e1n s\u1eafc<\/strong>. Gi\u00e1 tr\u1ecb ch\u1ecbu \u0111\u1ef1ng c\u00e0ng cao, m\u00f4-\u0111un c\u00e0ng c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u01b0\u1ee3c l\u01b0\u1ee3ng t\u00e1n s\u1eafc l\u1edbn h\u01a1n m\u00e0 kh\u00f4ng l\u00e0m suy gi\u1ea3m \u0111\u00e1ng k\u1ec3 hi\u1ec7u su\u1ea5t, t\u1eeb \u0111\u00f3 mang l\u1ea1i \u0111\u1ed9 linh ho\u1ea1t cao h\u01a1n trong thi\u1ebft k\u1ebf.<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2699\ufe0f V\u00ec sao \u0111i\u1ec1u n\u00e0y l\u1ea1i quan tr\u1ecdng: C\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 l\u1ee3i \u00edch<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tri\u1ec3n khai b\u00f9 t\u00e1n s\u1eafc hi\u1ec7u qu\u1ea3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t t\u00ednh n\u0103ng b\u1ed5 sung t\u00f9y ch\u1ecdn; \u0111\u00e2y l\u00e0 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi truy\u1ec1n th\u00f4ng quang h\u1ecdc hi\u1ec7n \u0111\u1ea1i. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 l\u00fd do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Cho ph\u00e9p \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao h\u01a1n:<\/strong> B\u00f9 t\u00e1n s\u1eafc l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng 100G, 400G, 800G v\u00e0 cao h\u01a1n n\u1eefa, n\u01a1i hi\u1ec7n t\u01b0\u1ee3ng gi\u00e3n n\u1edf xung tr\u1edf n\u00ean nghi\u00eam tr\u1ecdng h\u01a1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>M\u1edf r\u1ed9ng kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn:<\/strong> N\u00f3 cho ph\u00e9p t\u00edn hi\u1ec7u truy\u1ec1n \u0111i h\u00e0ng tr\u0103m ho\u1eb7c h\u00e0ng ngh\u00ecn kil\u00f4m\u00e9t m\u00e0 kh\u00f4ng b\u1ecb suy gi\u1ea3m \u2014 \u0111i\u1ec1u v\u00f4 c\u00f9ng quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1p bi\u1ec3n v\u00e0 m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i tr\u00ean \u0111\u1ea5t li\u1ec1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>C\u1ea3i thi\u1ec7n \u0111\u1ed9 nguy\u00ean v\u1eb9n t\u00edn hi\u1ec7u:<\/strong> B\u1eb1ng c\u00e1ch gi\u1ea3m thi\u1ec3u l\u1ed7i, n\u00f3 n\u00e2ng cao ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 c\u1ee7a k\u1ebft n\u1ed1i d\u1eef li\u1ec7u.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u1ed1i \u01b0u h\u00f3a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng hi\u1ec7n c\u00f3:<\/strong> Vi\u1ec7c b\u00f9 t\u00e1n s\u1eafc ti\u00ean ti\u1ebfn t\u00edch h\u1ee3p trong c\u00e1c m\u00f4-\u0111un nh\u01b0 <strong>CFP2-DCO-400G<\/strong> cho ph\u00e9p c\u00e1c nh\u00e0 khai th\u00e1c n\u00e2ng c\u1ea5p m\u1ea1ng tr\u00ean c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang c\u0169, t\u1eeb \u0111\u00f3 ti\u1ebft ki\u1ec7m chi ph\u00ed \u0111\u1ea7u t\u01b0 v\u1ed1n kh\u1ed5ng l\u1ed3.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9 b\u1ea1n \u0111ang x\u00e2y d\u1ef1ng m\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/data-center-interconnect-definition-benefits-and-role-of-optical-modules\/\"><strong>k\u1ebft n\u1ed1i trung t\u00e2m d\u1eef li\u1ec7u (DCI)<\/strong><\/a> m\u1ea1ng m\u1edbi hay n\u00e2ng c\u1ea5p x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5, vi\u1ec7c hi\u1ec3u r\u00f5 v\u00e0 qu\u1ea3n l\u00fd t\u00e1n s\u1eafc \u0111\u1ec1u l\u00e0 ch\u00eca kh\u00f3a \u0111\u1ec3 tri\u1ec3n khai th\u00e0nh c\u00f4ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2699\ufe0f K\u1ebft lu\u1eadn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/search\/?keyword=dispersion\"><strong>T\u00e1n s\u1eafc<\/strong><\/a> T\u00e1n s\u1eafc l\u00e0 m\u1ed9t th\u00e1ch th\u1ee9c v\u1eadt l\u00fd c\u01a1 b\u1ea3n trong truy\u1ec1n th\u00f4ng quang h\u1ecdc, nh\u01b0ng ho\u00e0n to\u00e0n kh\u00f4ng ph\u1ea3i l\u00e0 tr\u1edf ng\u1ea1i kh\u00f4ng th\u1ec3 v\u01b0\u1ee3t qua. Th\u00f4ng qua nhi\u1ec1u <strong>k\u1ef9 thu\u1eadt b\u00f9 t\u00e1n s\u1eafc<\/strong>\u2014 t\u1eeb c\u00e1c lo\u1ea1i s\u1ee3i quang chuy\u00ean d\u1ee5ng \u0111\u1ebfn x\u1eed l\u00fd \u0111i\u1ec7n t\u1eed th\u00f4ng minh \u2014 ch\u00fang ta c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c gi\u1edbi h\u1ea1n n\u00e0y. Vi\u1ec7c t\u00edch h\u1ee3p c\u00e1c kh\u1ea3 n\u0103ng n\u00e0y tr\u1ef1c ti\u1ebfp v\u00e0o c\u00e1c <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> m\u00f4-\u0111un quang h\u1ecdc ti\u00ean ti\u1ebfn \u0111\u1ea1i di\u1ec7n cho c\u00f4ng ngh\u1ec7 ti\u00ean phong nh\u1ea5t, v\u1eeba \u0111\u01a1n gi\u1ea3n h\u00f3a thi\u1ebft k\u1ebf m\u1ea1ng v\u1eeba m\u1edf r\u1ed9ng gi\u1edbi h\u1ea1n v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 kho\u1ea3ng c\u00e1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 lu\u00f4n d\u1eabn \u0111\u1ea7u trong th\u1ebf gi\u1edbi m\u1ea1ng quang h\u1ecdc n\u0103ng \u0111\u1ed9ng, b\u1ea1n c\u1ea7n c\u00f4ng ngh\u1ec7 \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00e1c \u0111\u1ed1i t\u00e1c chuy\u00ean gia. Nh\u1edd t\u1eadn d\u1ee5ng c\u00e1c gi\u1ea3i ph\u00e1p tinh vi nh\u01b0 c\u1ee7a <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a>, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ea1ng c\u1ee7a m\u00ecnh \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng m\u1ecdi y\u00eau c\u1ea7u c\u1ee7a ng\u00e0y mai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2699\ufe0f C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a b\u00f9 t\u00e1n s\u1eafc l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00f9 t\u00e1n s\u1eafc gi\u00fap gi\u1eef cho t\u00edn hi\u1ec7u lu\u00f4n r\u00f5 r\u00e0ng. N\u00f3 ng\u0103n c\u00e1c xung \u00e1nh s\u00e1ng b\u1ecb lan r\u1ed9ng. \u0110i\u1ec1u n\u00e0y l\u00e0m h\u00ecnh \u1ea3nh tr\u1edf n\u00ean t\u1ed1t h\u01a1n v\u00e0 d\u1eef li\u1ec7u ch\u00ednh x\u00e1c h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu b\u1ea1n kh\u00f4ng s\u1eed d\u1ee5ng b\u00f9 t\u00e1n s\u1eafc trong truy\u1ec1n th\u00f4ng d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 ch\u1ed3ng l\u1ea5n l\u00ean nhau. \u0110i\u1ec1u n\u00e0y g\u00e2y ra nhi\u1ec1u l\u1ed7i h\u01a1n trong d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n. D\u1eef li\u1ec7u c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ebfn \u0111\u01b0\u1ee3c \u0111\u00edch. B\u00f9 t\u00e1n s\u1eafc gi\u00fap tin nh\u1eafn c\u1ee7a b\u1ea1n lu\u00f4n nhanh ch\u00f3ng v\u00e0 an to\u00e0n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Thu\u1eadt to\u00e1n b\u00f9 t\u00e1n s\u1eafc l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Thu\u1eadt to\u00e1n b\u00f9 t\u00e1n s\u1eafc l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c b\u01b0\u1edbc \u0111\u01b0\u1ee3c l\u1eadp tr\u00ecnh trong ph\u1ea7n m\u1ec1m. N\u00f3 kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng lan r\u1ed9ng t\u00edn hi\u1ec7u sau khi d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c nh\u1eadn. B\u1ea1n s\u1eed d\u1ee5ng thu\u1eadt to\u00e1n n\u00e0y trong c\u00e1c h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt s\u1ed1 nh\u1eb1m l\u00e0m r\u00f5 t\u00edn hi\u1ec7u h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1eefng lo\u1ea1i h\u1ec7 th\u1ed1ng n\u00e0o c\u1ea7n b\u00f9 t\u00e1n s\u1eafc?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00f9 t\u00e1n s\u1eafc l\u00e0 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n \u00e1nh s\u00e1ng \u0111i xa, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ea1ng s\u1ee3i quang, h\u00ecnh \u1ea3nh y t\u1ebf, h\u1ec7 th\u1ed1ng d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng laser d\u00f9ng trong nghi\u00ean c\u1ee9u khoa h\u1ecdc.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p b\u00f9 t\u00e1n s\u1eafc ph\u00f9 h\u1ee3p?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u1ea7n c\u00e2n nh\u1eafc c\u00e1c y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng. H\u00e3y ki\u1ec3m tra lo\u1ea1i s\u1ee3i quang, kho\u1ea3ng c\u00e1ch truy\u1ec1n t\u00edn hi\u1ec7u v\u00e0 t\u1ed1c \u0111\u1ed9 truy\u1ec1n. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng s\u1ee3i quang \u0111\u1eb7c bi\u1ec7t, m\u1ea1ng nhi\u1ec5u x\u1ea1 (grating) ho\u1eb7c m\u1ed9t thu\u1eadt to\u00e1n. M\u1ed7i ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec1u ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi t\u1eebng nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3.<\/p>","protected":false},"excerpt":{"rendered":"<p>B\u00f9 tr\u1eeb t\u00e1n s\u1eafc trong h\u1ec7 th\u1ed1ng quang kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng t\u00e1n s\u1eafc s\u1eafc k\u00fd, \u0111\u1ea3m b\u1ea3o t\u00edn hi\u1ec7u r\u00f5 r\u00e0ng v\u00e0 ch\u00ednh x\u00e1c trong c\u00e1c \u1ee9ng d\u1ee5ng truy\u1ec1n th\u00f4ng s\u1ee3i quang v\u00e0 h\u00ecnh \u1ea3nh.<\/p>","protected":false},"author":1,"featured_media":4202,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[24,26],"class_list":["post-4204","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:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4204","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=4204"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4204\/revisions"}],"predecessor-version":[{"id":10896,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/4204\/revisions\/10896"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/4202"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=4204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=4204"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=4204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}