{"id":5175,"date":"2025-09-05T00:00:00","date_gmt":"2025-09-05T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/attenuation-in-optical-transceiver-management-and-solutions\/"},"modified":"2026-06-22T07:41:28","modified_gmt":"2026-06-22T07:41:28","slug":"attenuation-in-optical-transceiver-management-and-solutions","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/attenuation-in-optical-transceiver-management-and-solutions","title":{"rendered":"Hi\u1ec3u v\u1ec1 S\u1ef1 Suy hao T\u00edn hi\u1ec7u trong S\u1ee3i Quang v\u00e0 C\u00e1ch Qu\u1ea3n l\u00fd N\u00f3"},"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\/e15ca6cf847b4b7cae1dc911a8ec44aa.webp\" alt=\"Signal Attenuation\" class=\"wp-image-5173\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e15ca6cf847b4b7cae1dc911a8ec44aa.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e15ca6cf847b4b7cae1dc911a8ec44aa-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e15ca6cf847b4b7cae1dc911a8ec44aa-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e15ca6cf847b4b7cae1dc911a8ec44aa-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e15ca6cf847b4b7cae1dc911a8ec44aa-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ebf gi\u1edbi truy\u1ec1n th\u00f4ng s\u1ee3i quang t\u1ed1c \u0111\u1ed9 cao, d\u1eef li\u1ec7u di chuy\u1ec3n v\u1edbi t\u1ed1c \u0111\u1ed9 \u00e1nh s\u00e1ng. Nh\u01b0ng \u0111i\u1ec1u g\u00ec x\u1ea3y ra khi \u00e1nh s\u00e1ng \u1ea5y m\u1edd d\u1ea7n? <strong>S\u1ef1 Suy hao T\u00edn hi\u1ec7u Quang<\/strong> l\u00e0 y\u1ebfu t\u1ed1 l\u1edbn nh\u1ea5t h\u1ea1n ch\u1ebf kho\u1ea3ng c\u00e1ch v\u00e0 hi\u1ec7u n\u0103ng c\u1ee7a m\u1ea1ng c\u1ee7a b\u1ea1n. Vi\u1ec7c hi\u1ec3u r\u00f5 n\u00f3 l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai tham gia v\u00e0o <strong>trung t\u00e2m d\u1eef li\u1ec7u, vi\u1ec5n th\u00f4ng ho\u1eb7c m\u1ea1ng doanh nghi\u1ec7p<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y s\u1ebd l\u00e0m r\u00f5 hi\u1ec7n t\u01b0\u1ee3ng suy hao t\u00edn hi\u1ec7u, ph\u00e2n t\u00edch c\u00e1c nguy\u00ean nh\u00e2n g\u00e2y ra n\u00f3 v\u00e0 ch\u1ec9 cho b\u1ea1n c\u00e1ch ch\u1ed1ng l\u1ea1i hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdd Nh\u1eefng \u0111i\u1ec3m c\u1ea7n ghi nh\u1edb ch\u00ednh<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1ef1 suy hao l\u00e0m t\u00edn hi\u1ec7u y\u1ebfu \u0111i trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/fiber-optic-cable-what-it-is-and-how-it-works-explained\/\"><strong>c\u00e1p quang<\/strong><\/a>. Gi\u1eef m\u1ee9c suy hao th\u1ea5p \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o th\u00f4ng \u0111i\u1ec7p r\u00f5 r\u00e0ng.<\/p><\/li><li><p>Th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a b\u1ed9 thu ph\u00e1t quang c\u1ee7a b\u1ea1n. T\u00ecm hi\u1ec3u m\u1ee9c suy hao t\u1ed1i \u0111a m\u00e0 n\u00f3 c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng.<\/p><\/li><li><p>Ch\u1ecdn s\u1ee3i quang ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t v\u00e0 kh\u00f4ng u\u1ed1n cong n\u00f3 qu\u00e1 s\u1eafc. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1eef t\u00edn hi\u1ec7u m\u1ea1nh.<\/p><\/li><li><p>L\u00e0m s\u1ea1ch c\u00e1c \u0111\u1ea7u n\u1ed1i quang tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng. B\u1ee5i b\u1ea9n c\u00f3 th\u1ec3 l\u00e0m t\u0103ng suy hao v\u00e0 g\u00e2y h\u1ea1i cho m\u1ea1ng c\u1ee7a b\u1ea1n.<\/p><\/li><li><p>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 m\u00e1y \u0111o ph\u1ea3n x\u1ea1 th\u1eddi gian quang (OTDR) v\u00e0 \u0111\u1ed3ng h\u1ed3 \u0111o c\u00f4ng su\u1ea5t quang \u0111\u1ec3 \u0111o suy hao. Ph\u00e1t hi\u1ec7n s\u1edbm s\u1ef1 c\u1ed1 gi\u00fap ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 truy\u1ec1n th\u00f4ng.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1edd \u0111\u00e2y b\u1ea1n \u0111\u00e3 bi\u1ebft v\u00ec sao suy hao l\u1ea1i quan tr\u1ecdng trong m\u1ea1ng quang c\u1ee7a b\u1ea1n. Qu\u1ea3n l\u00fd suy hao quang gi\u00fap gi\u1eef t\u00edn hi\u1ec7u c\u1ee7a b\u1ea1n an to\u00e0n. B\u1ea1n c\u00f3 th\u1ec3 duy tr\u00ec t\u00edn hi\u1ec7u quang m\u1ea1nh b\u1eb1ng c\u00e1ch th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra c\u00e1p. S\u1eed d\u1ee5ng \u0111\u00fang c\u00f4ng c\u1ee5 quang cho m\u1ea1ng c\u1ee7a b\u1ea1n. Lu\u00f4n d\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o c\u00f4ng su\u1ea5t quang ho\u1eb7c<strong> OTDR<\/strong> \u0111\u1ec3 \u0111o t\u00edn hi\u1ec7u c\u1ee7a b\u1ea1n. L\u00e0m s\u1ea1ch c\u00e1c \u0111\u1ea7u n\u1ed1i quang \u0111\u1ec3 tr\u00e1nh m\u1ea5t t\u00edn hi\u1ec7u. N\u1ebfu t\u00edn hi\u1ec7u c\u1ee7a b\u1ea1n qu\u00e1 m\u1ea1nh, h\u00e3y d\u00f9ng b\u1ed9 suy hao quang. N\u1ebfu b\u1ea1n mu\u1ed1n t\u00ecm hi\u1ec3u th\u00eam, h\u00e3y \u0111\u1ecdc c\u00e1c h\u01b0\u1edbng d\u1eabn t\u1eeb c\u00e1c c\u00f4ng ty quang h\u00e0ng \u0111\u1ea7u. M\u1ea1ng quang c\u1ee7a b\u1ea1n s\u1ebd ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n n\u1ebfu b\u1ea1n ch\u0103m s\u00f3c t\u00edn hi\u1ec7u m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udd0d Suy hao T\u00edn hi\u1ec7u Quang l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Su suy hao quang h\u1ecdc<\/strong> l\u00e0 s\u1ef1 suy gi\u1ea3m d\u1ea7n d\u1ea7n c\u1ee7a th\u00f4ng l\u01b0\u1ee3ng (c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng) khi t\u00edn hi\u1ec7u quang truy\u1ec1n qua s\u1ee3i quang. \u0110\u01b0\u1ee3c \u0111o b\u1eb1ng decibel (dB), \u0111\u00e2y l\u00e0 t\u1ef7 l\u1ec7 logarit gi\u1eefa c\u00f4ng su\u1ea5t \u0111\u1ea7u ra v\u00e0 c\u00f4ng su\u1ea5t \u0111\u1ea7u v\u00e0o. N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, \u0111\u00f3 l\u00e0 s\u1ef1 suy y\u1ebfu c\u1ee7a t\u00edn hi\u1ec7u theo kho\u1ea3ng c\u00e1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ecdi m\u1ea1ng \u0111\u1ec1u c\u00f3 m\u1ed9t <strong>\u201cng\u00e2n s\u00e1ch t\u1ed5n hao\u201d<\/strong>\u2014 l\u01b0\u1ee3ng t\u1ed5n hao t\u1ed1i \u0111a m\u00e0 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u1ef1ng trong khi v\u1eabn ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang. V\u01b0\u1ee3t qu\u00e1 ng\u00e2n s\u00e1ch n\u00e0y d\u1eabn \u0111\u1ebfn l\u1ed7i d\u1eef li\u1ec7u, t\u1ed1c \u0111\u1ed9 ch\u1eadm v\u00e0 m\u1ea5t ho\u00e0n to\u00e0n k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a0\ufe0f N\u0103m Nguy\u00ean nh\u00e2n H\u00e0ng \u0111\u1ea7u G\u00e2y T\u1ed5n hao T\u00edn hi\u1ec7u S\u1ee3i Quang<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Suy hao kh\u00f4ng ch\u1ec9 c\u00f3 m\u1ed9t nguy\u00ean nh\u00e2n duy nh\u1ea5t. \u0110\u00f3 l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a nhi\u1ec1u y\u1ebfu t\u1ed1, c\u1ea3 n\u1ed9i t\u1ea1i l\u1eabn b\u00ean ngo\u00e0i.<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>H\u1ea5p th\u1ee5 N\u1ed9i t\u1ea1i:<\/strong> Ngay c\u1ea3 lo\u1ea1i th\u1ee7y tinh tinh khi\u1ebft nh\u1ea5t c\u0169ng h\u1ea5p th\u1ee5 m\u1ed9t l\u01b0\u1ee3ng r\u1ea5t nh\u1ecf n\u0103ng l\u01b0\u1ee3ng \u00e1nh s\u00e1ng, chuy\u1ec3n \u0111\u1ed5i th\u00e0nh nhi\u1ec7t. \u0110\u00e2y l\u00e0 \u0111\u1eb7c t\u00ednh c\u01a1 b\u1ea3n c\u1ee7a v\u1eadt li\u1ec7u.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Hi\u1ec7n t\u01b0\u1ee3ng T\u00e1n x\u1ea1 (T\u00e1n x\u1ea1 Rayleigh):<\/strong> Nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y t\u1ed5n hao trong s\u1ee3i quang. N\u00f3 x\u1ea3y ra khi \u00e1nh s\u00e1ng va ch\u1ea1m v\u1edbi c\u00e1c khuy\u1ebft t\u1eadt vi m\u00f4 trong th\u1ee7y tinh v\u00e0 b\u1ecb t\u00e1n x\u1ea1 theo m\u1ecdi h\u01b0\u1edbng. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y r\u00f5 r\u1ec7t h\u01a1n \u1edf c\u00e1c b\u01b0\u1edbc s\u00f3ng ng\u1eafn h\u01a1n.<\/p><\/li><li><p style=\"margin: 0px 0px 8px;\"><strong>T\u1ed5n hao do U\u1ed1n cong:<\/strong> Khi s\u1ee3i quang b\u1ecb u\u1ed1n cong qu\u00e1 s\u1eafc, \u00e1nh s\u00e1ng th\u1ef1c t\u1ebf c\u00f3 th\u1ec3 \u201cr\u00f2 r\u1ec9\u201d ra ngo\u00e0i. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c chia th\u00e0nh:<\/p><ul><li><p style=\"margin: 0px;\"><strong>U\u1ed1n cong v\u0129 m\u00f4:<\/strong> C\u00e1c ch\u1ed7 u\u1ed1n l\u1edbn, d\u1ec5 nh\u00ecn th\u1ea5y (v\u00ed d\u1ee5: c\u00e1p b\u1ecb xo\u1eafn).<\/p><\/li><li><p style=\"margin: 0px;\"><strong>U\u1ed1n cong vi m\u00f4:<\/strong> C\u00e1c ch\u1ed7 u\u1ed1n nh\u1ecf, vi m\u00f4 do \u00e1p l\u1ef1c t\u1eeb vi\u1ec7c \u0111\u00f3ng g\u00f3i c\u00e1p ho\u1eb7c \u1ee9ng su\u1ea5t m\u00f4i tr\u01b0\u1eddng.<\/p><\/li><\/ul><\/li><li><p style=\"margin: 0px;\"><strong>T\u1ed5n hao t\u1ea1i \u0110\u1ea7u n\u1ed1i v\u00e0 N\u1ed1i gh\u00e9p:<\/strong> M\u1ed7i \u0111i\u1ec3m k\u1ebft n\u1ed1i (\u0111\u1ea7u n\u1ed1i, n\u1ed1i gh\u00e9p, b\u1ed9 chia t\u00e1ch) \u0111\u1ec1u c\u00f3 th\u1ec3 l\u00e0 ngu\u1ed3n g\u00e2y t\u1ed5n hao do l\u1ec7ch tr\u1ee5c, b\u1ee5i b\u1ea9n ho\u1eb7c khe h\u1edf kh\u00f4ng kh\u00ed.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u1ea1p ch\u1ea5t:<\/strong> D\u00f9 quy tr\u00ecnh s\u1ea3n xu\u1ea5t hi\u1ec7n \u0111\u1ea1i r\u1ea5t ti\u00ean ti\u1ebfn, nh\u01b0ng c\u00e1c ion n\u01b0\u1edbc (OH-) ho\u1eb7c t\u1ea1p ch\u1ea5t kh\u00e1c t\u1ed3n t\u1ea1i v\u1edbi h\u00e0m l\u01b0\u1ee3ng c\u1ef1c nh\u1ecf trong th\u1ee7y tinh v\u1eabn c\u00f3 th\u1ec3 g\u00e2y h\u1ea5p th\u1ee5 \u0111\u00e1ng k\u1ec3 \u1edf c\u00e1c b\u01b0\u1edbc s\u00f3ng c\u1ee5 th\u1ec3.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcc9 \u1ea2nh h\u01b0\u1edfng Th\u1ef1c t\u1ebf: V\u00ec sao B\u1ea1n C\u1ea7n Quan T\u00e2m<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Suy hao qu\u00e1 m\u1ee9c tr\u1ef1c ti\u1ebfp d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 m\u1ea1ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>Gi\u1ea3m T\u1ed1c \u0111\u1ed9 Truy\u1ec1n D\u1eef li\u1ec7u:<\/strong> T\u00edn hi\u1ec7u y\u1ebfu \u0111\u00f2i h\u1ecfi nhi\u1ec1u x\u1eed l\u00fd s\u1eeda l\u1ed7i h\u01a1n, l\u00e0m ch\u1eadm th\u00f4ng l\u01b0\u1ee3ng hi\u1ec7u d\u1ee5ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>T\u0103ng <\/strong><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><strong>:<\/strong> B\u1ed9 thu g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c ph\u00e2n bi\u1ec7t gi\u1eefa bit 1 v\u00e0 bit 0, d\u1eabn \u0111\u1ebfn c\u00e1c g\u00f3i d\u1eef li\u1ec7u b\u1ecb h\u1ecfng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>R\u00fat ng\u1eafn Kho\u1ea3ng c\u00e1ch Truy\u1ec1n:<\/strong> K\u1ebft n\u1ed1i c\u00f3 th\u1ec3 \u0111\u01a1n gi\u1ea3n l\u00e0 kh\u00f4ng \u201cb\u1eaft \u0111\u01b0\u1ee3c\u201d tr\u00ean kho\u1ea3ng c\u00e1ch y\u00eau c\u1ea7u.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Chi ph\u00ed V\u1eadn h\u00e0nh Cao h\u01a1n:<\/strong> Vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 suy hao ti\u00eau t\u1ed1n th\u1eddi gian v\u00e0 ngu\u1ed3n l\u1ef1c.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udee0\ufe0f C\u00e1ch \u0110o l\u01b0\u1eddng v\u00e0 Gi\u1ea3m thi\u1ec3u Suy hao<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng c\u1ee5 then ch\u1ed1t \u0111\u1ec3 \u0111o t\u1ed5n hao l\u00e0 <strong>B\u1ed9 ki\u1ec3m tra t\u1ed5n hao quang (OLTS)<\/strong> ho\u1eb7c <strong>M\u00e1y \u0111o ph\u1ea3n x\u1ea1 th\u1eddi gian quang (OTDR)<\/strong>. OTDR \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch v\u00ec n\u00f3 kh\u00f4ng ch\u1ec9 \u0111o t\u1ed5ng t\u1ed5n hao; m\u00e0 c\u00f2n t\u1ea1o ra m\u1ed9t \u201cb\u1ea3n \u0111\u1ed3\u201d s\u1ee3i quang c\u1ee7a b\u1ea1n, x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed v\u00e0 m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng c\u1ee7a c\u00e1c s\u1ef1 ki\u1ec7n nh\u01b0 n\u1ed1i gh\u00e9p, \u0111\u1ea7u n\u1ed1i v\u00e0 ch\u1ed7 u\u1ed1n cong.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch Ch\u1ed1ng l\u1ea1i T\u1ed5n hao T\u00edn hi\u1ec7u:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>S\u1eed d\u1ee5ng S\u1ee3i Quang Ch\u1ea5t l\u01b0\u1ee3ng Cao:<\/strong> Ch\u1ecdn s\u1ee3i quang theo ti\u00eau chu\u1ea9n ITU-T G.652.D ho\u1eb7c G.657.A1\/B3 \u0111\u1ec3 \u0111\u1ea1t suy hao th\u1ea5p h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu u\u1ed1n t\u1ed1t h\u01a1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Gi\u1ea3m thi\u1ec3u S\u1ed1 l\u01b0\u1ee3ng K\u1ebft n\u1ed1i:<\/strong> L\u00ean k\u1ebf ho\u1ea1ch cho c\u00e1c tuy\u1ebfn k\u1ebft n\u1ed1i sao cho s\u1eed d\u1ee5ng c\u00e0ng \u00edt \u0111\u1ea7u n\u1ed1i v\u00e0 n\u1ed1i gh\u00e9p c\u00e0ng t\u1ed1t.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>L\u00e0m s\u1ea1ch K\u1ebft n\u1ed1i M\u1ed9t c\u00e1ch Nghi\u00eam ng\u1eb7t:<\/strong> M\u1ed9t \u0111\u1ea7u n\u1ed1i b\u1ea9n l\u00e0 nguy\u00ean nh\u00e2n h\u00e0ng \u0111\u1ea7u g\u00e2y suy hao b\u1ea5t ng\u1edd. H\u00e3y s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 l\u00e0m s\u1ea1ch chuy\u00ean d\u1ee5ng.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Tr\u00e1nh U\u1ed1n cong Qu\u00e1 Ch\u1eb7t:<\/strong> Lu\u00f4n tu\u00e2n th\u1ee7 <strong>b\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u<\/strong>.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ch\u1ecdn B\u1ed9 Thu Ph\u00e1t Ph\u00f9 h\u1ee3p:<\/strong> \u0110\u00e2y l\u00e0 n\u01a1i <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a> chuy\u00ean m\u00f4n m\u1edbi ph\u00e1t huy t\u00e1c d\u1ee5ng.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u26a1 T\u0103ng c\u01b0\u1eddng T\u00edn hi\u1ec7u: S\u1eed d\u1ee5ng B\u1ed9 Khu\u1ebfch \u0111\u1ea1i Quang<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"422\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fc439a0c2fe9401ca9eb6035539be344.webp\" alt=\"Attenuation\" class=\"wp-image-5174\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fc439a0c2fe9401ca9eb6035539be344.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fc439a0c2fe9401ca9eb6035539be344-300x106.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fc439a0c2fe9401ca9eb6035539be344-1024x360.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fc439a0c2fe9401ca9eb6035539be344-768x270.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/fc439a0c2fe9401ca9eb6035539be344-18x6.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Khi kho\u1ea3ng c\u00e1ch truy\u1ec1n y\u00eau c\u1ea7u v\u01b0\u1ee3t qu\u00e1 kh\u1ea3 n\u0103ng c\u1ee7a b\u1ed9 thu ph\u00e1t v\u00e0 s\u1ee3i quang ri\u00eang l\u1ebb, <strong>b\u1ed9 khu\u1ebfch \u0111\u1ea1i quang<\/strong> tr\u1edf th\u00e0nh \u201canh h\u00f9ng\u201d trong c\u00e2u chuy\u1ec7n n\u00e0y. Kh\u00e1c v\u1edbi b\u1ed9 t\u00e1i t\u1ea1o (regenerator), v\u1ed1n ph\u1ea3i chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u quang th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n r\u1ed3i l\u1ea1i chuy\u1ec3n ng\u01b0\u1ee3c l\u1ea1i th\u00e0nh t\u00edn hi\u1ec7u quang (O-E-O), b\u1ed9 khu\u1ebfch \u0111\u1ea1i quang t\u0103ng tr\u1ef1c ti\u1ebfp c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 b\u01b0\u1edbc chuy\u1ec3n \u0111\u1ed5i n\u00e0o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 <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 quang pha t\u1ea1p Erbium (EDFA)<\/strong><\/a>, \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong <strong>truy\u1ec1n d\u1eabn s\u1ee3i quang \u0111\u01b0\u1eddng d\u00e0i<\/strong> and <strong>c\u00e1c h\u1ec7 th\u1ed1ng DWDM<\/strong>. C\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i s\u1ee3i quang pha t\u1ea1p erbium (EDFA) khu\u1ebfch \u0111\u1ea1i \u00e1nh s\u00e1ng trong c\u1eeda s\u1ed5 1550 nm (khu v\u1ef1c c\u00f3 \u0111\u1ed9 suy hao th\u1ea5p nh\u1ea5t trong s\u1ee3i quang silica), hi\u1ec7u qu\u1ea3 k\u00e9o d\u00e0i ph\u1ea1m vi truy\u1ec1n t\u00edn hi\u1ec7u c\u1ee7a b\u1ea1n h\u00e0ng tr\u0103m kil\u00f4m\u00e9t m\u00e0 kh\u00f4ng c\u1ea7n l\u1eb7p l\u1ea1i \u0111i\u1ec7n n\u00e0o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u00edch h\u1ee3p m\u1ed9t b\u1ed9 khu\u1ebfch \u0111\u1ea1i s\u1ee3i quang pha t\u1ea1p erbium (EDFA) v\u00e0o h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n l\u00e0 m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c m\u1ea1nh m\u1ebd \u0111\u1ec3 kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng suy hao v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn si\u00eau xa. <strong>truy\u1ec1n d\u1eabn d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udca1 Gi\u1ea3i ph\u00e1p c\u1ee7a LINK-PP: Quang h\u1ecdc th\u00f4ng minh h\u01a1n cho t\u00edn hi\u1ec7u m\u1ea1nh h\u01a1n<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ch\u1ed1ng suy hao kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ee3i quang; m\u00e0 c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb \u1edf m\u1ed7i \u0111\u1ea7u. M\u1ed9t b\u1ed9 thu ph\u00e1t ch\u1ea5t l\u01b0\u1ee3ng cao <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> v\u1edbi c\u00e1c th\u00e0nh ph\u1ea7n v\u01b0\u1ee3t tr\u1ed9i c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 trong ng\u00e2n s\u00e1ch t\u1ed5n hao c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t c\u1ee7a LINK-PP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t nh\u1eb1m \u0111\u1ea1t hi\u1ec7u su\u1ea5t <strong>c\u00f4ng su\u1ea5t ph\u00e1t<\/strong> and <strong>\u0111\u1ed9 nh\u1ea1y b\u1ed9 thu<\/strong>, xu\u1ea5t s\u1eafc, gi\u00fap b\u1ea1n c\u00f3 bi\u00ean d\u1ef1 ph\u00f2ng r\u1ed9ng h\u01a1n trong ng\u00e2n s\u00e1ch t\u1ed5n hao. \u0110i\u1ec1u n\u00e0y \u0111\u1ed3ng ngh\u0129a v\u1edbi c\u00e1c li\u00ean k\u1ebft \u0111\u00e1ng tin c\u1eady h\u01a1n tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, m\u00f4-\u0111un <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475782.htm\"><strong>SFP-10G-ZR<\/strong><\/a> c\u1ee7a ch\u00fang t\u00f4i kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t m\u00f4-\u0111un 10GBASE-ZR th\u00f4ng th\u01b0\u1eddng. N\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t v\u1edbi hi\u1ec7u n\u0103ng v\u01b0\u1ee3t tr\u1ed9i, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn tuy\u1ec7t v\u1eddi <strong>b\u1ed9 thu ph\u00e1t quang DWDM c\u00f4ng su\u1ea5t cao<\/strong> d\u00e0nh cho c\u00e1c \u1ee9ng d\u1ee5ng truy\u1ec1n d\u1eabn xa, n\u01a1i t\u1eebng dB \u0111\u1ec1u quan tr\u1ecdng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea1n \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t gi\u1ea3i ph\u00e1p 100G \u0111\u00e1ng tin c\u1eady?<\/strong> H\u00e3y h\u1ecfi v\u1ec1 m\u00f4-\u0111un <strong>LINK-PP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/472118.htm\"><strong>QSFP28-100G-LR4<\/strong><\/a> c\u1ee7a ch\u00fang t\u00f4i, m\u1ed9t <strong>b\u1ed9 thu ph\u00e1t quang 100G LR4 h\u1ea1ng cao<\/strong> n\u1ed5i ti\u1ebfng nh\u1edd m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n th\u1ea5p v\u00e0 hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh trong c\u00e1c k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u.<\/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=\"width: 152px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p><strong>Lo\u1ea1i s\u1ee3i<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u1ed9 suy hao \u0111i\u1ec3n h\u00ecnh (@1550 nm)<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"152\"><p><strong>Ph\u00f9 h\u1ee3p nh\u1ea5t cho<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>M\u00f4-\u0111un LINK-PP \u0111\u1ec1 xu\u1ea5t<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ee3i \u0111\u01a1n mode (G.652.D)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0,20 dB\/km<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"152\"><p>Truy\u1ec1n d\u1eabn xa, vi\u1ec5n th\u00f4ng, DWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LINK-PP <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475782.htm\"><strong>LS-SM5510-80C<\/strong><\/a><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ee3i \u00edt nh\u1ea1y v\u1edbi u\u1ed1n (G.657.A1)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0,22 dB\/km<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"152\"><p>FTTH, gi\u00e1 \u0111\u1ee1 m\u1eadt \u0111\u1ed9 cao<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LINK-PP <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475857.htm\"><strong>LS-BL273310-20C<\/strong><\/a><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>S\u1ee3i \u0111a mode (OM4)<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2,5 dB\/km (<em>@850 nm<\/em>)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"152\"><p>Trung t\u00e2m d\u1eef li\u1ec7u t\u1ea7m ng\u1eafn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LINK-PP <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\"><strong>LS-MM8510-S3C<\/strong><\/a><\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\ud83d\udcdd K\u1ebft lu\u1eadn: \u0110\u1eebng \u0111\u1ec3 t\u00edn hi\u1ec7u c\u1ee7a b\u1ea1n m\u1edd d\u1ea7n<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 v\u00e0 qu\u1ea3n l\u00fd <strong>hi\u1ec7n t\u01b0\u1ee3ng suy hao t\u00edn hi\u1ec7u quang<\/strong> l\u00e0 \u0111i\u1ec1u b\u1eaft bu\u1ed9c \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t m\u1ea1ng l\u01b0\u1edbi hi\u1ec7u n\u0103ng cao, b\u1ec1n v\u1eefng v\u1edbi t\u01b0\u01a1ng lai. B\u1eb1ng c\u00e1ch l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i s\u1ee3i quang, b\u1ea3o tr\u00ec \u0111\u00fang c\u00e1ch, t\u1eadn d\u1ee5ng c\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/erbium-doped-fiber-amplifier-optical-networks\/\"><strong>b\u1ed9 khu\u1ebfch \u0111\u1ea1i quang<\/strong><\/a>, v\u00e0 h\u1ee3p t\u00e1c c\u00f9ng nh\u00e0 cung c\u1ea5p linh ki\u1ec7n \u0111\u1eb7t ch\u1ea5t l\u01b0\u1ee3ng l\u00ean h\u00e0ng \u0111\u1ea7u, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh truy\u1ec1n \u0111i r\u00f5 r\u00e0ng v\u00e0 hi\u1ec7u qu\u1ea3 tr\u00ean m\u1ecdi kho\u1ea3ng c\u00e1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udcde \u0110\u00e3 s\u1eb5n s\u00e0ng t\u1ed1i \u01b0u h\u00f3a ng\u00e2n s\u00e1ch t\u1ed5n hao c\u1ee7a m\u1ea1ng v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00edn hi\u1ec7u ch\u01b0a?<\/strong><\/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 ngay v\u1edbi chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i<\/strong><\/a><strong> t\u1ea1i LINK-PP h\u00f4m nay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed. D\u00f9 b\u1ea1n c\u1ea7n l\u1eddi khuy\u00ean v\u1ec1 c\u00e1c b\u1ed9 thu ph\u00e1t quang t\u1ed5n hao th\u1ea5p hay thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng truy\u1ec1n d\u1eabn xa c\u00f3 khu\u1ebfch \u0111\u1ea1i, ch\u00fang t\u00f4i \u0111\u1ec1u c\u00f3 gi\u1ea3i ph\u00e1p ph\u00f9 h\u1ee3p. C\u00f9ng nhau x\u00e2y d\u1ef1ng m\u1ed9t m\u1ea1ng l\u01b0\u1edbi nhanh h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u2753 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >Nguy\u00ean nh\u00e2n ch\u00ednh g\u00e2y suy hao trong s\u1ee3i quang l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7n t\u01b0\u1ee3ng suy hao trong s\u1ee3i quang ch\u1ee7 y\u1ebfu x\u1ea3y ra do h\u1ea5p th\u1ee5 v\u00e0 t\u00e1n x\u1ea1. V\u1eadt li\u1ec7u s\u1ee3i quang h\u1ea5p th\u1ee5 m\u1ed9t ph\u1ea7n \u00e1nh s\u00e1ng khi \u00e1nh s\u00e1ng di chuy\u1ec3n qua. C\u00e1c khuy\u1ebft t\u1eadt nh\u1ecf trong s\u1ee3i quang l\u00e0m \u00e1nh s\u00e1ng b\u1ecb t\u00e1n x\u1ea1. C\u1ea3 hai hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u1ec1u l\u00e0m suy y\u1ebfu t\u00edn hi\u1ec7u khi n\u00f3 truy\u1ec1n qua s\u1ee3i quang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111o suy hao trong s\u1ee3i quang?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 ki\u1ec3m tra suy hao b\u1eb1ng m\u00e1y ph\u00e2n t\u00edch ph\u1ea3n x\u1ea1 quang th\u1eddi gian (OTDR) ho\u1eb7c m\u00e1y \u0111o c\u00f4ng su\u1ea5t. M\u00e1y OTDR g\u1eedi m\u1ed9t xung \u00e1nh s\u00e1ng v\u00e0 hi\u1ec3n th\u1ecb v\u1ecb tr\u00ed t\u1ed5n hao. M\u00e1y \u0111o c\u00f4ng su\u1ea5t ki\u1ec3m tra c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng t\u1ea1i \u0111\u1ea7u v\u00e0 cu\u1ed1i s\u1ee3i quang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u1ea1i sao suy hao th\u1ea5p l\u1ea1i quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng quang?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Suy hao th\u1ea5p gi\u00fap duy tr\u00ec t\u00edn hi\u1ec7u m\u1ea1nh trong s\u1ee3i quang. B\u1ea1n c\u1ea7n m\u1ed9t t\u00edn hi\u1ec7u m\u1ea1nh \u0111\u1ec3 v\u1eadn h\u00e0nh c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng quang hi\u1ec7u qu\u1ea3. Suy hao cao c\u00f3 th\u1ec3 g\u00e2y ra l\u1ed7i v\u00e0 l\u00e0m suy y\u1ebfu t\u00edn hi\u1ec7u. Lu\u00f4n ki\u1ec3m tra s\u1ee3i quang c\u1ee7a b\u1ea1n \u0111\u1ec3 gi\u1eef m\u1ee9c suy hao \u1edf m\u1ee9c th\u1ea5p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng s\u1ee3i quang cho c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng kho\u1ea3ng c\u00e1ch xa kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, b\u1ea1n ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng s\u1ee3i quang cho c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng kho\u1ea3ng c\u00e1ch xa. S\u1ee3i quang cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u tr\u00ean nhi\u1ec1u kil\u00f4m\u00e9t. H\u00e3y ch\u1ecdn s\u1ee3i quang c\u00f3 \u0111\u1ed9 suy hao th\u1ea5p v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u00edn hi\u1ec7u c\u1ee7a b\u1ea1n duy tr\u00ec \u0111\u1ed9 m\u1ea1nh tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>M\u1eb9o:<br><\/strong> Lu\u00f4n l\u00e0m s\u1ea1ch c\u00e1c \u0111\u1ea7u n\u1ed1i s\u1ee3i quang. \u0110\u1ea7u n\u1ed1i b\u1ea9n l\u00e0m t\u0103ng suy hao v\u00e0 l\u00e0m gi\u1ea3m hi\u1ec7u n\u0103ng c\u1ee7a m\u1ea1ng s\u1ee3i quang.<\/p><\/blockquote>","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed9 suy hao trong c\u00e1c b\u1ed9 thu ph\u00e1t quang l\u00e0m suy y\u1ebfu t\u00edn hi\u1ec7u. Ki\u1ec3m so\u00e1t t\u1ed5n th\u1ea5t b\u1eb1ng c\u00e1ch ki\u1ec3m tra c\u00e1p, l\u00e0m s\u1ea1ch c\u00e1c \u0111\u1ea7u n\u1ed1i v\u00e0 s\u1eed d\u1ee5ng \u0111\u00fang c\u00e1c c\u00f4ng c\u1ee5 s\u1ee3i quang.<\/p>","protected":false},"author":1,"featured_media":5173,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5175","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\/5175","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=5175"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5175\/revisions"}],"predecessor-version":[{"id":11174,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/5175\/revisions\/11174"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/5173"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=5175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=5175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=5175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}