{"id":3546,"date":"2025-12-01T00:00:00","date_gmt":"2025-12-01T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/optical-pulse-explained-high-speed-fiber-optics-guide\/"},"modified":"2026-05-26T07:46:03","modified_gmt":"2026-05-26T07:46:03","slug":"optical-pulse-explained-high-speed-fiber-optics-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/optical-pulse-explained-high-speed-fiber-optics-guide","title":{"rendered":"Nh\u1eefng \u0111i\u1ec1u c\u01a1 b\u1ea3n v\u1ec1 xung quang h\u1ecdc: C\u00e1ch t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"867\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0efb45f5104a4dce85bd119bb7f474d8.webp\" alt=\"What Is an Optical Pulse?\" class=\"wp-image-3540\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0efb45f5104a4dce85bd119bb7f474d8.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0efb45f5104a4dce85bd119bb7f474d8-300x217.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0efb45f5104a4dce85bd119bb7f474d8-1024x740.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0efb45f5104a4dce85bd119bb7f474d8-768x555.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0efb45f5104a4dce85bd119bb7f474d8-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong truy\u1ec1n th\u00f4ng quang s\u1ee3i, <strong>xung quang<\/strong> l\u00e0 \u0111\u01a1n v\u1ecb thi\u1ebft y\u1ebfu mang th\u00f4ng tin s\u1ed1 qua c\u00e1c s\u1ee3i quang. Nh\u1eefng ch\u00f9m \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh ch\u00ednh x\u00e1c n\u00e0y bi\u1ec3u th\u1ecb d\u1eef li\u1ec7u nh\u1ecb ph\u00e2n v\u00e0 cho ph\u00e9p c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 \u0111a gigabit v\u00e0 th\u1eadm ch\u00ed \u1edf m\u1ee9c terabit. Vi\u1ec7c hi\u1ec3u r\u00f5 h\u00e0nh vi, c\u00e1ch t\u1ea1o ra v\u00e0 \u0111\u1eb7c t\u00ednh truy\u1ec1n d\u1eabn c\u1ee7a c\u00e1c xung quang l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 thi\u1ebft k\u1ebf c\u00e1c m\u1ea1ng s\u1ee3i quang \u0111\u00e1ng tin c\u1eady c\u0169ng nh\u01b0 l\u1ef1a ch\u1ecdn b\u1ed9 thu ph\u00e1t quang ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang ch\u1ea5t l\u01b0\u1ee3ng cao\u2014v\u00ed d\u1ee5 nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>B\u1ed9 thu ph\u00e1t quang LINK-PP<\/strong><\/a> \u2014\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u00e1t ra c\u00e1c xung quang \u1ed5n \u0111\u1ecbnh, \u0111\u1ed9 m\u00e9o th\u1eddi gian (jitter) th\u1ea5p, t\u1eeb \u0111\u00f3 n\u00e2ng cao \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u v\u00e0 gi\u1ea3m <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-what-is-bit-error-rate\/\">t\u1ef7 l\u1ec7 l\u1ed7i bit<br><\/a> trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng \u0111\u00f2i h\u1ecfi kh\u1eaft khe.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 Xung quang l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t <strong>xung quang<\/strong> l\u00e0 m\u1ed9t ch\u00f9m n\u0103ng l\u01b0\u1ee3ng quang ng\u1eafn, \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n, do laser ho\u1eb7c LED b\u00ean trong b\u1ed9 thu ph\u00e1t s\u1ee3i quang t\u1ea1o ra. Trong truy\u1ec1n th\u00f4ng s\u1ee3i quang k\u1ef9 thu\u1eadt s\u1ed1, d\u1eef li\u1ec7u nh\u1ecb ph\u00e2n \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng s\u1ef1 hi\u1ec7n di\u1ec7n ho\u1eb7c v\u1eafng m\u1eb7t c\u1ee7a nh\u1eefng xung n\u00e0y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>C\u00f3 xung \u2192 \u201c1\u201d<\/strong><\/p><\/li><li><p><strong>Kh\u00f4ng c\u00f3 xung \u2192 \u201c0\u201d<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec nh\u1eefng xung n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ebf \u1edf t\u1ed1c \u0111\u1ed9 c\u1ef1c cao\u2014xu\u1ed1ng \u0111\u1ebfn m\u1ee9c nanogi\u00e2y ho\u1eb7c picogi\u00e2y\u2014n\u00ean ch\u00fang h\u1ed7 tr\u1ee3 c\u00e1c chu\u1ea9n m\u1ea1ng hi\u1ec7u n\u0103ng cao nh\u01b0 <strong>SFP+, QSFP+, QSFP28, QSFP-DD<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 C\u00e1ch xung quang \u0111\u01b0\u1ee3c t\u1ea1o ra trong c\u00e1c b\u1ed9 thu ph\u00e1t quang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00ean trong c\u00e1c m\u00f4-\u0111un quang nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">SFP<\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">SFP+<\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">QSFP+<\/a>, or <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-27046-50g-qsfp28-sfp56.htm\">QSFP28<br><\/a>, ph\u1ea7n m\u1ea1ch ph\u00e1t t\u1ea1o ra c\u00e1c xung \u00e1nh s\u00e1ng th\u00f4ng qua nhi\u1ec1u th\u00e0nh ph\u1ea7n ph\u1ed1i h\u1ee3p v\u1edbi nhau.<\/p>\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\/0dc9d1211c0042308acbd6a011df2362.webp\" alt=\"optical modules\" class=\"wp-image-3541\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0dc9d1211c0042308acbd6a011df2362.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0dc9d1211c0042308acbd6a011df2362-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0dc9d1211c0042308acbd6a011df2362-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0dc9d1211c0042308acbd6a011df2362-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0dc9d1211c0042308acbd6a011df2362-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b7 Ngu\u1ed3n laser<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/dfb-laser-definition\/\"><strong>DFB<\/strong><\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/eml-laser-diodes-explained-for-optical-modules\/\"><strong>EML<\/strong><\/a>, and <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/overview-of-vcsel\/\"><strong>Laser VCSEL.<\/strong><\/a> laser chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec1u ch\u1ebf \u0111i\u1ec7n th\u00e0nh n\u0103ng l\u01b0\u1ee3ng quang k\u1ebft h\u1ee3p. Lo\u1ea1i laser \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh b\u01b0\u1edbc s\u00f3ng, t\u1ed1c \u0111\u1ed9 \u0111i\u1ec1u ch\u1ebf v\u00e0 hi\u1ec7u su\u1ea5t nhi\u1ec5u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b7 M\u1ea1ch \u0111i\u1ec1u ch\u1ebf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ecbnh d\u1ea1ng t\u1eebng xung, ki\u1ec3m so\u00e1t th\u1eddi gian t\u0103ng (rise time), th\u1eddi gian gi\u1ea3m (fall time), \u0111\u1ed9 r\u1ed9ng v\u00e0 th\u1eddi \u0111i\u1ec3m. Vi\u1ec7c \u0111\u1ecbnh d\u1ea1ng \u0111\u00fang \u0111\u1ea3m b\u1ea3o gi\u1ea3m thi\u1ec3u nhi\u1ec5u gi\u1eefa c\u00e1c k\u00fd hi\u1ec7u (inter-symbol interference) v\u00e0 m\u00e9o d\u1ea1ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b7 IC \u0111i\u1ec1u khi\u1ec3n laser (Driver IC)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u ch\u1ec9nh bi\u00ean \u0111\u1ed9 xung v\u00e0 t\u1ef7 s\u1ed1 t\u1eaft m\u1edf (extinction ratio), \u0111\u1ea3m b\u1ea3o c\u00e1c xung m\u1ea1nh, r\u00f5 r\u00e0ng, \u0111\u1ee7 kh\u1ea3 n\u0103ng truy\u1ec1n \u0111i xa qua s\u1ee3i quang.<\/p>\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\">C\u00e1c m\u00f4-\u0111un LINK-PP<\/a> s\u1eed d\u1ee5ng c\u00e1c m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n laser c\u1ef1c \u1ed5n \u0111\u1ecbnh v\u00e0 m\u1ea1ch \u0111i\u1ec1u ch\u1ebf t\u1ed1i \u01b0u, t\u1ea1o ra c\u00e1c xung quang s\u1ea1ch v\u1edbi \u0111\u1ed9 m\u00e9o th\u1eddi gian (jitter) gi\u1ea3m thi\u1ec3u nh\u1eb1m c\u1ea3i thi\u1ec7n \u0111\u1ed9 tin c\u1eady m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 T\u1ea1i sao ch\u1ea5t l\u01b0\u1ee3ng xung quang l\u1ea1i quan tr\u1ecdng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec7u n\u0103ng truy\u1ec1n th\u00f4ng s\u1ee3i quang ph\u1ee5 thu\u1ed9c tr\u1ef1c ti\u1ebfp v\u00e0o \u0111\u1ed9 r\u00f5 n\u00e9t v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a c\u00e1c xung quang lan truy\u1ec1n qua s\u1ee3i. Khi t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eabn t\u0103ng l\u00ean, ngay c\u1ea3 s\u1ef1 m\u00e9o d\u1ea1ng xung nh\u1ecf nh\u1ea5t c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c y\u1ebfu t\u1ed1 then ch\u1ed1t v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng xung<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><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><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/snr-signal-to-noise-ratio-and-its-impact-on-signal-quality\/\"><strong>T\u1ef7 s\u1ed1 t\u00edn hi\u1ec7u tr\u00ean nhi\u1ec5u (SNR)<\/strong><\/a><\/p><\/li><li><p><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a th\u1eddi gian t\u0103ng v\u00e0 th\u1eddi gian gi\u1ea3m<\/strong><\/p><\/li><li><p><strong>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a \u0111\u1ed9 m\u00e9o th\u1eddi gian (timing jitter)<\/strong><\/p><\/li><li><p><strong>Hi\u1ec7u n\u0103ng t\u1ef7 s\u1ed1 t\u1eaft m\u1edf (extinction ratio)<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c d\u1ea1ng m\u00e9o xung ph\u1ed5 bi\u1ebfn<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>T\u00e1n s\u1eafc<\/strong>, l\u00e0m gi\u00e3n r\u1ed9ng xung theo kho\u1ea3ng c\u00e1ch<\/p><\/li><li><p><strong>M\u1ee9c suy hao<\/strong>, l\u00e0m gi\u1ea3m bi\u00ean \u0111\u1ed9 xung<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/polarization-mode-dispersion-in-fiber-optics\/\"><strong>Ph\u00e2n t\u00e1n ch\u1ebf \u0111\u1ed9 ph\u00e2n c\u1ef1c (PMD)<\/strong><\/a><\/p><\/li><li><p><strong>Nhi\u1ec5u \u0111i\u1ec7n t\u1eeb m\u1ea1ch ph\u00e1t<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t quang ch\u1ea5t l\u01b0\u1ee3ng cao gi\u00fap duy tr\u00ec vi\u1ec7c ki\u1ec3m so\u00e1t xung ch\u1eb7t ch\u1ebd h\u01a1n, gi\u1ea3m thi\u1ec3u m\u00e9o d\u1ea1ng v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c khi truy\u1ec1n d\u1eabn xa.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e2440f4f22f7413ea36bc98a43802f32.png\" alt=\"Optical Pulse\" class=\"wp-image-3542\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e2440f4f22f7413ea36bc98a43802f32.png 1536w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e2440f4f22f7413ea36bc98a43802f32-300x200.png 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e2440f4f22f7413ea36bc98a43802f32-1024x683.png 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e2440f4f22f7413ea36bc98a43802f32-768x512.png 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e2440f4f22f7413ea36bc98a43802f32-18x12.png 18w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 C\u00e1ch xung quang lan truy\u1ec1n qua s\u1ee3i quang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi \u0111\u01b0\u1ee3c ph\u00e1t \u0111i, c\u00e1c xung quang lan truy\u1ec1n qua s\u1ee3i v\u00e0 t\u01b0\u01a1ng t\u00e1c v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd c\u1ee7a m\u00f4i tr\u01b0\u1eddng, c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng c\u1ee7a ch\u00fang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Ph\u00e2n t\u00e1n s\u1eafc (Chromatic Dispersion)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau b\u00ean trong xung di chuy\u1ec3n v\u1edbi v\u1eadn t\u1ed1c kh\u00e1c nhau, g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng gi\u00e3n r\u1ed9ng d\u1ea1ng s\u00f3ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u1ed5n hao (Attenuation)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Bi\u00ean \u0111\u1ed9 xung suy gi\u1ea3m tr\u00ean c\u00e1c \u0111o\u1ea1n s\u1ee3i d\u00e0i, \u0111\u1ea7u n\u1ed1i v\u00e0 m\u1ed1i n\u1ed1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c hi\u1ec7u \u1ee9ng phi tuy\u1ebfn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede m\u1ee9c c\u00f4ng su\u1ea5t cao, c\u00e1c hi\u1ec7u \u1ee9ng quang phi tuy\u1ebfn c\u00f3 th\u1ec3 l\u00e0m m\u00e9o d\u1ea1ng v\u00e0 th\u1eddi \u0111i\u1ec3m c\u1ee7a xung.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng su\u1ea5t ph\u00e1t \u1ed5n \u0111\u1ecbnh, \u0111i\u1ec1u khi\u1ec3n b\u01b0\u1edbc s\u00f3ng ch\u00ednh x\u00e1c v\u00e0 \u0111\u1ed9 nh\u1ea1y cao c\u1ee7a b\u1ed9 thu l\u00e0 nh\u1eefng y\u00eau c\u1ea7u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n d\u1eabn \u1ed5n \u0111\u1ecbnh\u2014c\u00e1c kh\u1ea3 n\u0103ng n\u00e0y \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong c\u00e1c m\u00f4-\u0111un quang LINK-PP.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 C\u00e1ch b\u1ed9 thu ph\u00e1t hi\u1ec7n xung quang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede \u0111\u1ea7u thu, m\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/pin-apd-photodiode-technologies-applications\/\"><strong>\u0111i-\u1ed1t quang<\/strong><\/a>\u2014th\u01b0\u1eddng l\u00e0 photodiode PIN ho\u1eb7c APD\u2014chuy\u1ec3n \u0111\u1ed5i c\u00e1c xung quang \u0111\u1ea7u v\u00e0o th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u1ec3 x\u1eed l\u00fd b\u1edfi m\u1ea1ch ph\u00eda sau.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"602\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e64b7a6ad17e42aca0c5ec3ebcbf7386.jpg\" alt=\"PIN and APD Photodiodes in Optical Transceivers \" class=\"wp-image-3543\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e64b7a6ad17e42aca0c5ec3ebcbf7386.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e64b7a6ad17e42aca0c5ec3ebcbf7386-300x151.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e64b7a6ad17e42aca0c5ec3ebcbf7386-1024x514.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e64b7a6ad17e42aca0c5ec3ebcbf7386-768x385.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e64b7a6ad17e42aca0c5ec3ebcbf7386-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Tr\u00e1ch nhi\u1ec7m c\u1ee7a b\u1ed9 thu<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ph\u00e1t hi\u1ec7n s\u1ef1 bi\u1ebfn thi\u00ean c\u01b0\u1eddng \u0111\u1ed9 \u00e1nh s\u00e1ng<\/p><\/li><li><p>Chuy\u1ec3n \u0111\u1ed5i xung th\u00e0nh \u0111i\u1ec7n \u00e1p<\/p><\/li><li><p>Kh\u00f4i ph\u1ee5c c\u00e1c m\u1eabu d\u1eef li\u1ec7u s\u1ed1<\/p><\/li><li><p>Gi\u1ea3m thi\u1ec3u l\u1ed7i bit th\u00f4ng qua l\u1ecdc v\u00e0 kh\u00f4i ph\u1ee5c th\u1eddi \u0111i\u1ec3m<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu LINK-PP cung c\u1ea5p \u0111\u1ed9 nh\u1ea1y cao v\u00e0 hi\u1ec7u su\u1ea5t nhi\u1ec5u th\u1ea5p, \u0111\u1ea3m b\u1ea3o vi\u1ec7c ph\u00e1t hi\u1ec7n xung ch\u00ednh x\u00e1c ngay c\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n c\u00f4ng su\u1ea5t th\u1ea5p ho\u1eb7c truy\u1ec1n d\u1eabn xa.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 \u1ee8ng d\u1ee5ng c\u1ee7a xung quang trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Xung quang l\u00e0 n\u1ec1n t\u1ea3ng cho h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng hi\u1ec7u n\u0103ng cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25cf Trung t\u00e2m d\u1eef li\u1ec7u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c li\u00ean k\u1ebft SR\/LR t\u1ed1c \u0111\u1ed9 cao d\u1ef1a v\u00e0o c\u00e1c xung \u0111\u01b0\u1ee3c \u0111\u1ecbnh h\u00ecnh ch\u00ednh x\u00e1c t\u1eeb <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\">Laser VCSEL.<\/a> and<a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/483029.htm\"> c\u00e1c m\u00f4-\u0111un d\u1ef1a tr\u00ean laser DFB<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25cf M\u1ea1ng vi\u1ec5n th\u00f4ng &amp; m\u1ea1ng \u0111\u00f4 th\u1ecb (Metro Networks)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u1ed9 thu ph\u00e1t CWDM\/DWDM t\u1ea7m xa s\u1eed d\u1ee5ng c\u00e1c xung h\u1eb9p, \u1ed5n \u0111\u1ecbnh cho kho\u1ea3ng c\u00e1ch l\u00ean t\u1edbi 80\u2013120 km v\u00e0 xa h\u01a1n n\u1eefa.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25cf M\u1ea1ng s\u1ee3i quang c\u00f4ng nghi\u1ec7p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482486.htm\">C\u00e1c b\u1ed9 thu ph\u00e1t c\u1ea5p c\u00f4ng nghi\u1ec7p<\/a> ph\u1ea3i duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a xung trong d\u1ea3i nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t v\u00e0 m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t\u2014\u0111\u00e2y l\u00e0 l\u0129nh v\u1ef1c m\u00e0 s\u1ea3n ph\u1ea9m LINK-PP v\u01b0\u1ee3t tr\u1ed9i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25cf V\u00ec sao b\u1ed9 thu ph\u00e1t quang LINK-PP mang l\u1ea1i hi\u1ec7u n\u0103ng xung v\u01b0\u1ee3t tr\u1ed9i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP thi\u1ebft k\u1ebf c\u00e1c b\u1ed9 thu ph\u00e1t quang c\u1ee7a m\u00ecnh nh\u1eb1m \u0111\u00e1p \u1ee9ng nghi\u00eam ng\u1eb7t c\u00e1c ti\u00eau chu\u1ea9n IEEE v\u00e0 MSA, \u0111\u1ea3m b\u1ea3o vi\u1ec7c t\u1ea1o ra xung quang \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady \u1edf m\u1ecdi t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/70460f033cfc4250b7fd76d98bc34370.webp\" alt=\"LINK-PP Optical Transceivers\" class=\"wp-image-3544\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/70460f033cfc4250b7fd76d98bc34370.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/70460f033cfc4250b7fd76d98bc34370-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/70460f033cfc4250b7fd76d98bc34370-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/70460f033cfc4250b7fd76d98bc34370-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/70460f033cfc4250b7fd76d98bc34370-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" >\u01afu \u0111i\u1ec3m n\u1ed5i b\u1eadt<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c xung quang s\u1ea1ch, \u0111\u1ed9 m\u00e9o th\u1eddi gian (jitter) th\u1ea5p<\/p><\/li><li><p>\u0110i\u1ec1u ch\u1ebf t\u1ed1i \u01b0u cho truy\u1ec1n d\u1eabn t\u1ed1c \u0111\u1ed9 cao<\/p><\/li><li><p>\u0110\u1ed9 nh\u1ea1y b\u1ed9 thu cao cho c\u00e1c \u1ee9ng d\u1ee5ng truy\u1ec1n d\u1eabn xa<\/p><\/li><li><p>C\u00e1c phi\u00ean b\u1ea3n c\u1ea5p c\u00f4ng nghi\u1ec7p v\u1edbi kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 r\u1ed9ng<\/p><\/li><li><p>T\u01b0\u01a1ng th\u00edch OEM v\u00e0 ki\u1ec3m tra \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng 100%<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\u25cf K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c xung quang l\u00e0 nh\u1eefng kh\u1ed1i x\u00e2y d\u1ef1ng c\u01a1 b\u1ea3n c\u1ee7a h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng s\u1ee3i quang hi\u1ec7n \u0111\u1ea1i. H\u00ecnh d\u1ea1ng, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 r\u00f5 n\u00e9t c\u1ee7a ch\u00fang quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng. V\u1edbi c\u00e1c laser \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u00ednh x\u00e1c, m\u1ea1ch \u0111i\u1ec1u ch\u1ebf \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ed9 thu c\u00f3 \u0111\u1ed9 nh\u1ea1y cao, <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> cung c\u1ea5p c\u00e1c xung quang ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1eb1m \u0111\u1ea3m b\u1ea3o vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u nhanh ch\u00f3ng, ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady tr\u00ean m\u1ecdi \u1ee9ng d\u1ee5ng m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng n\u00e0y ti\u1ebfp t\u1ee5c l\u00e0m n\u1ec1n t\u1ea3ng cho th\u1ebf h\u1ec7 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng truy\u1ec1n th\u00f4ng t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ed9 tr\u1ec5 th\u1ea5p ti\u1ebfp theo trong c\u00e1c m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p, vi\u1ec5n th\u00f4ng v\u00e0 c\u00f4ng nghi\u1ec7p.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u c\u00e1ch c\u00e1c xung quang h\u1ecdc truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao trong c\u00e1c m\u1ea1ng s\u1ee3i quang. Kh\u00e1m ph\u00e1 c\u00e1c nguy\u00ean l\u00fd, \u1ee9ng d\u1ee5ng v\u00e0 l\u00fd do v\u00ec sao b\u1ed9 thu ph\u00e1t quang LINK-PP cung c\u1ea5p c\u00e1c xung s\u1ea1ch h\u01a1n v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n.<\/p>","protected":false},"author":1,"featured_media":3545,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[24,26],"class_list":["post-3546","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-link-pp","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3546","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=3546"}],"version-history":[{"count":2,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3546\/revisions"}],"predecessor-version":[{"id":8047,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3546\/revisions\/8047"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3545"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}