{"id":5271,"date":"2025-09-01T00:00:00","date_gmt":"2025-09-01T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/long-haul-transmission-explained-how-it-works-simply\/"},"modified":"2026-06-22T07:57:17","modified_gmt":"2026-06-22T07:57:17","slug":"long-haul-transmission-explained-how-it-works-simply","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/long-haul-transmission-explained-how-it-works-simply","title":{"rendered":"\u0110i xa: C\u00f4ng ngh\u1ec7 \u0111\u1eb1ng sau vi\u1ec7c truy\u1ec1n d\u1eabn quang s\u1ee3i kho\u1ea3ng c\u00e1ch xa"},"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\/91d09f3b5c884e2595a77623738bcb3d.webp\" alt=\"Long-Haul Transmission Explained in Simple Words\" class=\"wp-image-5268\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/91d09f3b5c884e2595a77623738bcb3d.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/91d09f3b5c884e2595a77623738bcb3d-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/91d09f3b5c884e2595a77623738bcb3d-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/91d09f3b5c884e2595a77623738bcb3d-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/91d09f3b5c884e2595a77623738bcb3d-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00fang ta s\u1ed1ng trong m\u1ed9t <strong>th\u1ebf gi\u1edbi si\u00eau k\u1ebft n\u1ed1i<\/strong> n\u01a1i cu\u1ed9c g\u1ecdi video v\u1edbi ng\u01b0\u1eddi \u1edf c\u00e1ch xa 10.000 d\u1eb7m c\u1ea3m gi\u00e1c m\u01b0\u1ee3t m\u00e0 nh\u01b0 th\u1ec3 kh\u00f4ng c\u00f3 kho\u1ea3ng c\u00e1ch. \u0110\u1eb1ng sau k\u1ef3 t\u00edch hi\u1ec7n \u0111\u1ea1i n\u00e0y l\u00e0 s\u1ee9c m\u1ea1nh to l\u1edbn c\u1ee7a <strong>truy\u1ec1n d\u1eabn quang s\u1ee3i kho\u1ea3ng c\u00e1ch xa<\/strong>, tr\u1ee5 c\u1ed9t th\u1ea7m l\u1eb7ng c\u1ee7a internet to\u00e0n c\u1ea7u. Nh\u01b0ng \u00e1nh s\u00e1ng l\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 di chuy\u1ec3n qua c\u00e1c \u0111\u1ea1i d\u01b0\u01a1ng v\u00e0 l\u1ee5c \u0111\u1ecba m\u00e0 suy hao t\u00edn hi\u1ec7u g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u00e1ng k\u1ec3?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y \u0111i s\u00e2u v\u00e0o nh\u1eefng k\u1ef3 t\u00edch k\u1ef9 thu\u1eadt cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u \u1edf kho\u1ea3ng c\u00e1ch c\u1ef1c xa, nh\u1eefng th\u00e1ch th\u1ee9c \u0111\u00e3 \u0111\u01b0\u1ee3c kh\u1eafc ph\u1ee5c v\u00e0 vai tr\u00f2 then ch\u1ed1t c\u1ee7a c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc ti\u00ean ti\u1ebfn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdd N\u00fai Everest c\u1ee7a d\u1eef li\u1ec7u: Nh\u1eefng th\u00e1ch th\u1ee9c ch\u00ednh trong truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">G\u1eedi d\u1eef li\u1ec7u qua h\u00e0ng tr\u0103m ho\u1eb7c h\u00e0ng ngh\u00ecn kil\u00f4m\u00e9t kh\u00f4ng h\u1ec1 \u0111\u01a1n gi\u1ea3n. Nh\u1eefng k\u1ebb th\u00f9 ch\u00ednh l\u00e0m suy gi\u1ea3m t\u00edn hi\u1ec7u quang s\u1ea1ch l\u00e0:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>Su\u1ea5t suy hao:<\/strong> S\u1ef1 suy gi\u1ea3m d\u1ea7n c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng khi n\u00f3 lan truy\u1ec1n trong s\u1ee3i quang. \u0110\u00e2y l\u00e0 r\u00e0o c\u1ea3n ch\u00ednh \u0111\u1ed1i v\u1edbi vi\u1ec7c truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u00e1n s\u1eafc:<\/strong> Hi\u1ec7n t\u01b0\u1ee3ng \u201cm\u1edd\u201d ho\u1eb7c lan r\u1ed9ng c\u1ee7a xung \u00e1nh s\u00e1ng khi n\u00f3 lan truy\u1ec1n. Hi\u1ec7n t\u01b0\u1ee3ng l\u00e0m m\u1edd c\u00e1c xung n\u00e0y khi\u1ebfn ch\u00fang kh\u00f3 ph\u00e2n bi\u1ec7t t\u1ea1i \u0111\u1ea7u thu, d\u1eabn \u0111\u1ebfn l\u1ed7i.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Hi\u1ec7u \u1ee9ng phi tuy\u1ebfn:<\/strong> \u1ede m\u1ee9c c\u00f4ng su\u1ea5t r\u1ea5t cao, ch\u00ednh t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i \u0111\u1eb7c t\u00ednh c\u1ee7a s\u1ee3i quang, g\u00e2y ra c\u00e1c bi\u1ebfn d\u1ea1ng ph\u1ee9c t\u1ea1p v\u00e0 nhi\u1ec5u xuy\u00ean k\u00eanh.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c kh\u1eafc ph\u1ee5c nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y \u0111\u00f2i h\u1ecfi s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa v\u1eadt l\u00fd tinh t\u1ebf v\u00e0 ph\u1ea7n c\u1ee9ng ti\u00ean ti\u1ebfn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdd B\u1ed9 v\u0169 kh\u00ed c\u00f4ng ngh\u1ec7 cho truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa: DWDM, b\u1ed9 khu\u1ebfch \u0111\u1ea1i v\u00e0 nhi\u1ec1u h\u01a1n n\u1eefa<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 ch\u1ed1ng l\u1ea1i suy hao v\u00e0 t\u1ed1i \u0111a h\u00f3a dung l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t s\u1ee3i quang duy nh\u1ea5t, c\u00e1c k\u1ef9 s\u01b0 s\u1eed d\u1ee5ng m\u1ed9t t\u1ed5 h\u1ee3p c\u00f4ng ngh\u1ec7 m\u1ea1nh m\u1ebd:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng d\u00e0y \u0111\u1eb7c <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-dwdm-explaining-dense-wavelength-division-multiplexing\/\"><strong>(DWDM)<\/strong><\/a><strong>:<\/strong> \u0110\u00e2y l\u00e0 ng\u00f4i sao s\u00e1ng nh\u1ea5t v\u1ec1 dung l\u01b0\u1ee3ng. C\u00f4ng ngh\u1ec7 DWDM cho ph\u00e9p nhi\u1ec1u <strong>t\u00edn hi\u1ec7u mang quang<\/strong> (m\u1ed7i t\u00edn hi\u1ec7u tr\u00ean m\u1ed9t b\u01b0\u1edbc s\u00f3ng\/m\u00e0u laser kh\u00e1c nhau) \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ed3ng th\u1eddi tr\u00ean c\u00f9ng m\u1ed9t s\u1ee3i quang. H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng \u0111i\u1ec1u n\u00e0y gi\u1ed1ng nh\u01b0 bi\u1ebfn m\u1ed9t con \u0111\u01b0\u1eddng m\u1ed9t l\u00e0n th\u00e0nh m\u1ed9t xa l\u1ed9 si\u00eau r\u1ed9ng v\u1edbi nhi\u1ec1u l\u00e0n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>B\u1ed9 khu\u1ebfch \u0111\u1ea1i quang:<\/strong> Thay v\u00ec chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u quang tr\u1edf l\u1ea1i th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u1ec3 khu\u1ebfch \u0111\u1ea1i (vi\u1ec7c n\u00e0y ch\u1eadm v\u00e0 t\u1ed1n k\u00e9m tr\u00ean c\u00e1c chu\u1ed7i d\u00e0i), <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/erbium-doped-fiber-amplifier-optical-networks\/\"><strong>B\u1ed9 khu\u1ebfch \u0111\u1ea1i s\u1ee3i pha \u00ea-ri (EDFA)<\/strong><\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Ch\u00fang khu\u1ebfch \u0111\u1ea1i tr\u1ef1c ti\u1ebfp t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng \u1edf d\u1ea1ng quang h\u1ecdc c\u1ee7a n\u00f3, cung c\u1ea5p m\u1ed9t m\u1ee9c t\u0103ng c\u00f4ng su\u1ea5t thi\u1ebft y\u1ebfu m\u1ed7i 80\u2013100 km.<\/p><\/li><li><p style=\"margin: 0px;\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/what-is-optical-modulation-and-how-it-works-explained\/\"><strong>C\u00e1c \u0111\u1ecbnh d\u1ea1ng \u0111i\u1ec1u ch\u1ebf ti\u00ean ti\u1ebfn<\/strong><\/a><strong>:<\/strong> C\u00e1c k\u1ef9 thu\u1eadt nh\u01b0 <strong>DP-QPSK (\u0110i\u1ec1u ch\u1ebf d\u1ecbch pha vu\u00f4ng g\u00f3c ph\u00e2n c\u1ef1c k\u00e9p)<\/strong> and <strong>quang h\u1ecdc k\u1ebft h\u1ee3p<br><\/strong> n\u00e9n nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n v\u00e0o m\u1ed7i xung \u00e1nh s\u00e1ng, gi\u00fap vi\u1ec7c truy\u1ec1n d\u1eabn hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 ch\u1ed1ng nhi\u1ec5u, ch\u1ed1ng m\u00e9o d\u1ea1ng t\u1ed1t h\u01a1n.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdd Ng\u01b0\u1eddi h\u00f9ng th\u1ea7m l\u1eb7ng: B\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1eddng d\u00e0i ph\u00f9 h\u1ee3p<\/strong><\/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\/efa40824d05245eeaf088716b73413ce.webp\" alt=\"optical transceivers\" class=\"wp-image-5269\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/efa40824d05245eeaf088716b73413ce.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/efa40824d05245eeaf088716b73413ce-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/efa40824d05245eeaf088716b73413ce-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/efa40824d05245eeaf088716b73413ce-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/efa40824d05245eeaf088716b73413ce-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trung t\u00e2m c\u1ee7a m\u1ecdi li\u00ean k\u1ebft \u0111\u01b0\u1eddng d\u00e0i l\u00e0 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>. Kh\u00f4ng ph\u1ea3i b\u1ed9 thu ph\u00e1t n\u00e0o c\u0169ng \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c. B\u1ea1n c\u1ea7n c\u00e1c b\u1ed9 thu ph\u00e1t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t d\u00e0nh ri\u00eang cho <strong>quang h\u1ecdc \u0111\u01b0\u1eddng d\u00e0i<\/strong> c\u00f3 kh\u1ea3 n\u0103ng ph\u00e1t c\u00f4ng su\u1ea5t cao, \u0111\u1ed9 nh\u1ea1y v\u01b0\u1ee3t tr\u1ed9i v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c k\u1ef9 thu\u1eadt \u0111i\u1ec1u ch\u1ebf ti\u00ean ti\u1ebfn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 n\u01a1i m\u00e0 hi\u1ec7u n\u0103ng v\u00e0 \u0111\u1ed9 tin c\u1eady l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 b\u1eaft bu\u1ed9c. C\u00e1c th\u01b0\u01a1ng hi\u1ec7u nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>LINK-PP<\/strong><\/a> chuy\u00ean s\u1ea3n xu\u1ea5t c\u00e1c b\u1ed9 thu ph\u00e1t quang b\u1ec1n b\u1ec9, hi\u1ec7u n\u0103ng cao, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf k\u1ef9 l\u01b0\u1ee1ng cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, b\u1ed9 thu ph\u00e1t <strong>400G-ZR+ QSFP-DD<\/strong> l\u00e0 m\u1ed9t m\u00f4-\u0111un c\u1eafm gh\u00e9p \u0111\u1ed3ng pha mang t\u00ednh \u0111\u1ed9t ph\u00e1 \u0111\u1ed1i v\u1edbi <strong>li\u00ean k\u1ebft n\u1ed9i b\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u kho\u1ea3ng c\u00e1ch xa <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/data-center-interconnect-definition-benefits-and-role-of-optical-modules\/\"><strong>(DCI)<\/strong><\/a>. N\u00f3 h\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eabn l\u00ean \u0111\u1ebfn 800 km b\u1eb1ng c\u00f4ng ngh\u1ec7 \u0111\u1ed3ng pha v\u00e0 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho <strong>c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng truy\u1ec1n DWDM m\u1eadt \u0111\u1ed9 cao<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi kh\u00e1c cho c\u1ea3 m\u1ea1ng k\u1ebf th\u1eeba v\u00e0 m\u1ea1ng hi\u1ec7n \u0111\u1ea1i l\u00e0 <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482513.htm\"><strong>LQ-LW100-ZR4C<br><\/strong><\/a>. \u0110\u00e2y l\u00e0 <strong>b\u1ed9 thu ph\u00e1t \u0111\u1ed3ng pha 100G ZR4<\/strong> \u2014 \u201ccon ng\u1ef1a th\u1ed3\u201d \u0111\u1ec3 \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 100G tr\u00ean kho\u1ea3ng c\u00e1ch v\u01b0\u1ee3t qu\u00e1 80 km, l\u00fd t\u01b0\u1edfng cho m\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-metropolitan-area-network\/\"><strong>(MANs)<\/strong><\/a> v\u00e0 li\u00ean k\u1ebft v\u00f9ng, mang l\u1ea1i s\u1ef1 c\u00e2n b\u1eb1ng tuy\u1ec7t v\u1eddi gi\u1eefa hi\u1ec7u n\u0103ng v\u00e0 chi ph\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi l\u1ef1a ch\u1ecdn m\u1ed9t m\u00f4-\u0111un, c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt quan tr\u1ecdng c\u1ea7n xem x\u00e9t bao g\u1ed3m <strong>c\u00f4ng su\u1ea5t \u0111\u1ea7u ra c\u1ee7a b\u1ed9 ph\u00e1t, \u0111\u1ed9 nh\u1ea1y c\u1ee7a b\u1ed9 thu v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu m\u00e9o d\u1ea1ng<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdd So s\u00e1nh c\u00e1c gi\u1ea3i ph\u00e1p truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i ph\u1ed5 bi\u1ebfn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng sau \u0111\u00e2y tr\u00ecnh b\u00e0y chi ti\u1ebft c\u00e1c c\u00f4ng ngh\u1ec7 ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea1t c\u00e1c m\u1ee5c ti\u00eau kho\u1ea3ng c\u00e1ch kh\u00e1c nhau:<\/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;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>C\u00f4ng ngh\u1ec7<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>C\u00e1c t\u00ednh n\u0103ng n\u1ed5i b\u1eadt<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>Ph\u00f9 h\u1ee3p nh\u1ea5t cho<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Quang h\u1ecdc 100GBASE-LR4 \/ ER4<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 km \/ 40 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng 4 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-lwdm-and-why-important-for-lans\/\"><strong>b\u01b0\u1edbc s\u00f3ng LAN WDM<\/strong><\/a> , ph\u1ed5 bi\u1ebfn trong c\u00e1c <strong>li\u00ean k\u1ebft n\u1ed9i b\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u00f4 th\u1ecb &amp; v\u00f9ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u1ed3ng pha 100G ZR\/ZR+<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>80 km \u2013 800 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f4ng ngh\u1ec7 \u0111\u1ed3ng pha, t\u00edch h\u1ee3p <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/digital-signal-processor-functionality-in-optical-transceivers\/\"><strong>ti\u00ean ti\u1ebfn<\/strong><\/a>, kh\u1ea3 n\u0103ng ch\u1ecbu m\u00e9o d\u1ea1ng cao<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft \u0111\u01b0\u1eddng d\u00e0i &amp; DCI<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>DWDM + EDFA<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100 km \u2013 1000 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Khu\u1ebfch \u0111\u1ea1i \u0111\u1ed3ng th\u1eddi nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng, dung l\u01b0\u1ee3ng kh\u1ed5ng l\u1ed3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1p xuy\u00ean \u0111\u1ea1i d\u01b0\u01a1ng, m\u1ea1ng l\u00f5i<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdd T\u01b0\u01a1ng lai c\u1ee7a truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed9c t\u00ecm ki\u1ebfm c\u00f4ng su\u1ea5t l\u1edbn h\u01a1n v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n xa h\u01a1n ch\u01b0a bao gi\u1edd ng\u1eebng l\u1ea1i. T\u01b0\u01a1ng lai n\u1eb1m \u1edf:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>T\u00edch h\u1ee3p t\u0103ng c\u01b0\u1eddng:<\/strong> C\u00e1c thi\u1ebft b\u1ecb quang h\u1ecdc \u0111\u1ed3ng pha c\u00f3 th\u1ec3 c\u1eafm r\u1eddi (nh\u01b0 c\u00e1c chu\u1ea9n 400ZR+ v\u00e0 800ZR) \u0111ang mang hi\u1ec7u n\u0103ng c\u00e1p quang bi\u1ec3n v\u00e0o trung t\u00e2m d\u1eef li\u1ec7u.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ph\u00e2n chia theo kh\u00f4ng gian (SDM):<\/strong> S\u1eed d\u1ee5ng s\u1ee3i quang nhi\u1ec1u l\u00f5i \u0111\u1ec3 th\u1ef1c t\u1ebf t\u1ea1o ra \u201cnhi\u1ec1u s\u1ee3i quang h\u01a1n\u201d trong m\u1ed9t c\u00e1p duy nh\u1ea5t.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Thi\u1ebft k\u1ebf s\u1ee3i quang ti\u00ean ti\u1ebfn:<\/strong> C\u00e1c lo\u1ea1i s\u1ee3i quang m\u1edbi v\u1edbi suy hao gi\u1ea3m v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i c\u00e1c hi\u1ec7u \u1ee9ng phi tuy\u1ebfn t\u1ed1t h\u01a1n.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdd K\u1ebft lu\u1eadn: K\u1ebft n\u1ed1i th\u1ebf gi\u1edbi, t\u1eebng xung \u00e1nh s\u00e1ng m\u1ed9t<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Truy\u1ec1n d\u1eabn quang s\u1ee3i kho\u1ea3ng c\u00e1ch xa l\u00e0 m\u1ed9t l\u0129nh v\u1ef1c h\u1ea5p d\u1eabn, n\u01a1i v\u1eadt l\u00fd, k\u1ef9 thu\u1eadt v\u00e0 \u0111\u1ed5i m\u1edbi h\u1ed9i t\u1ee5 \u0111\u1ec3 th\u00fac \u0111\u1ea9y \u0111\u1eddi s\u1ed1ng s\u1ed1 c\u1ee7a ch\u00fang ta. B\u1eb1ng c\u00e1ch t\u1eadn d\u1ee5ng c\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 DWDM, khu\u1ebfch \u0111\u1ea1i quang v\u00e0 b\u1ed9 thu ph\u00e1t quang \u0111\u1ed3ng pha hi\u1ec7u su\u1ea5t cao <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/coherent-transceivers-high-speed-data-transmission-explained\/\"><strong>b\u1ed9 thu ph\u00e1t quang \u0111\u1ed3ng pha<\/strong><\/a> t\u1eeb c\u00e1c nh\u00e0 l\u00e3nh \u0111\u1ea1o ng\u00e0nh nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a>, ch\u00fang ta ti\u1ebfp t\u1ee5c 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\"><strong>S\u1eb5n s\u00e0ng thi\u1ebft k\u1ebf ho\u1eb7c n\u00e2ng c\u1ea5p c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i c\u1ee7a b\u1ea1n?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea3m b\u1ea3o th\u00e0nh c\u00f4ng cho d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u su\u1ea5t cao. <strong>Kh\u00e1m ph\u00e1 to\u00e0n b\u1ed9 danh m\u1ee5c b\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1eddng d\u00e0i c\u1ee7a LINK-PP<\/strong> \u0111\u1ec3 t\u00ecm gi\u1ea3i ph\u00e1p ho\u00e0n h\u1ea3o cho y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch v\u00e0 dung l\u01b0\u1ee3ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/support.htm\"><strong>Li\u00ean h\u1ec7 v\u1edbi chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i ngay h\u00f4m nay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n \u279e<\/strong><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdd FAQ<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00f4ng vi\u1ec7c ch\u00ednh c\u1ee7a truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i chuy\u1ec3n d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n \u0111i qu\u00e3ng \u0111\u01b0\u1eddng r\u1ea5t xa. N\u00f3 k\u1ebft n\u1ed1i c\u00e1c th\u00e0nh ph\u1ed1, qu\u1ed1c gia v\u00e0 th\u1eadm ch\u00ed c\u1ea3 c\u00e1c ch\u00e2u l\u1ee5c. B\u1ea1n s\u1eed d\u1ee5ng n\u00f3 m\u1ed7i ng\u00e0y cho internet, cu\u1ed9c g\u1ecdi \u0111i\u1ec7n tho\u1ea1i v\u00e0 ph\u00e1t tr\u1ef1c tuy\u1ebfn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1p quang g\u1eedi d\u1eef li\u1ec7u nhanh nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1p quang s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n. \u00c1nh s\u00e1ng di chuy\u1ec3n r\u1ea5t nhanh qua c\u00e1c s\u1ee3i th\u1ee7y tinh b\u00ean trong c\u00e1p. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p b\u1ea1n g\u1eedi th\u00f4ng tin \u0111i xa ch\u1ec9 trong v\u00e0i gi\u00e2y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u1ea1i sao t\u00edn hi\u1ec7u c\u1ea7n b\u1ed9 khu\u1ebfch \u0111\u1ea1i v\u00e0 b\u1ed9 l\u1eb7p?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00edn hi\u1ec7u c\u00f3 th\u1ec3 suy y\u1ebfu khi di chuy\u1ec3n. B\u1ed9 khu\u1ebfch \u0111\u1ea1i t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 m\u1ea1nh c\u1ee7a t\u00edn hi\u1ec7u. B\u1ed9 l\u1eb7p nh\u1eadn t\u00edn hi\u1ec7u v\u00e0 ti\u1ebfp t\u1ee5c truy\u1ec1n \u0111i. B\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u r\u00f5 r\u00e0ng v\u00e0 m\u1ea1nh m\u1ebd, ngay c\u1ea3 tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i c\u00f3 ho\u1ea1t \u0111\u1ed9ng d\u01b0\u1edbi \u0111\u00e1y bi\u1ec3n kh\u00f4ng?<\/h3>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>C\u00f3! C\u00e1c c\u00e1p quang \u0111\u1eb7c bi\u1ec7t ch\u1ea1y d\u01b0\u1edbi \u0111\u00e1y bi\u1ec3n. Nh\u1eefng c\u00e1p n\u00e0y k\u1ebft n\u1ed1i c\u00e1c ch\u00e2u l\u1ee5c. B\u1ea1n c\u00f3 th\u1ec3 g\u1ecdi \u0111i\u1ec7n ho\u1eb7c nh\u1eafn tin cho ng\u01b0\u1eddi \u1edf qu\u1ed1c gia kh\u00e1c nh\u1edd nh\u1eefng c\u00e1p ng\u1ea7m d\u01b0\u1edbi n\u01b0\u1edbc n\u00e0y.<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" >Truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i c\u00f3 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi tr\u00f2 ch\u01a1i tr\u1ef1c tuy\u1ebfn kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u1eafc ch\u1eafn r\u1ed3i! C\u00e1c m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i gi\u1eef cho k\u1ebft n\u1ed1i c\u1ee7a b\u1ea1n nhanh v\u00e0 \u1ed5n \u0111\u1ecbnh. B\u1ea1n ch\u01a1i game c\u00f9ng b\u1ea1n b\u00e8 \u1edf th\u00e0nh ph\u1ed1 ho\u1eb7c qu\u1ed1c gia kh\u00e1c m\u00e0 kh\u00f4ng b\u1ecb gi\u1eadt lag. \u0110i\u1ec1u n\u00e0y mang l\u1ea1i tr\u1ea3i nghi\u1ec7m ch\u01a1i game m\u01b0\u1ee3t m\u00e0 v\u00e0 th\u00fa v\u1ecb.<\/p>","protected":false},"excerpt":{"rendered":"<p>Truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa s\u1eed d\u1ee5ng c\u00e1p quang \u0111\u1ec3 g\u1eedi d\u1eef li\u1ec7u nhanh ch\u00f3ng v\u00e0 an to\u00e0n tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i, k\u1ebft n\u1ed1i c\u00e1c th\u00e0nh ph\u1ed1 v\u00e0 qu\u1ed1c gia nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 giao ti\u1ebfp cao.<\/p>","protected":false},"author":1,"featured_media":5270,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5271","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\/5271","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=5271"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5271\/revisions"}],"predecessor-version":[{"id":11201,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5271\/revisions\/11201"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5270"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}