{"id":6543,"date":"2025-09-08T00:00:00","date_gmt":"2025-09-08T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/space-division-multiplexing-modern-fiber-network-capacity-boost\/"},"modified":"2026-06-22T07:35:37","modified_gmt":"2026-06-22T07:35:37","slug":"space-division-multiplexing-modern-fiber-network-capacity-boost","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/space-division-multiplexing-modern-fiber-network-capacity-boost","title":{"rendered":"T\u00ecm hi\u1ec3u v\u1ec1 \u0110a truy nh\u1eadp ph\u00e2n chia theo kh\u00f4ng gian (SDM) cho c\u00e1c m\u1ea1ng s\u1ee3i quang hi\u1ec7n \u0111\u1ea1i"},"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\/500f20694e0046a1bfc31c71ca8be0a9.webp\" alt=\"Understanding Space Division Multiplexing for Modern Fiber Networks\" class=\"wp-image-6541\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/500f20694e0046a1bfc31c71ca8be0a9.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/500f20694e0046a1bfc31c71ca8be0a9-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/500f20694e0046a1bfc31c71ca8be0a9-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/500f20694e0046a1bfc31c71ca8be0a9-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/500f20694e0046a1bfc31c71ca8be0a9-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 h\u1ecfi l\u00e0m th\u1ebf n\u00e0o c\u00e1c m\u1ea1ng c\u00e1p quang x\u1eed l\u00fd nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n ng\u00e0y nay. <strong>\u0110a ph\u00e2n chia kh\u00f4ng gian<\/strong>, or <strong>SDM<\/strong>, cho ph\u00e9p b\u1ea1n truy\u1ec1n nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n c\u00f9ng m\u1ed9t l\u00fac. N\u00f3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c \u0111\u01b0\u1eddng d\u1eabn kh\u00e1c nhau b\u00ean trong m\u1ed9t s\u1ee3i c\u00e1p quang duy nh\u1ea5t. C\u00f4ng ngh\u1ec7 n\u00e0y gi\u00fap b\u1ea1n m\u1edf r\u1ed9ng quy m\u00f4 m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n l\u1eafp \u0111\u1eb7t th\u00eam c\u00e1p m\u1edbi. \u0110a ph\u00e2n chia kh\u00f4ng gian (SDM) gi\u00fap b\u1ea1n truy\u1ec1n d\u1eef li\u1ec7u nhanh h\u01a1n v\u00e0 v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn h\u01a1n m\u1ed7i ng\u00e0y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 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>\u0110a ph\u00e2n chia kh\u00f4ng gian (SDM)<\/strong> cho ph\u00e9p nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n di chuy\u1ec3n trong m\u1ed9t s\u1ee3i c\u00e1p quang. N\u00f3 s\u1eed d\u1ee5ng c\u00e1c \u0111\u01b0\u1eddng d\u1eabn kh\u00e1c nhau, gi\u1ed1ng nh\u01b0 vi\u1ec7c b\u1ed5 sung th\u00eam l\u00e0n \u0111\u01b0\u1eddng v\u00e0o m\u1ed9t con \u0111\u01b0\u1eddng.<\/p><\/li><li><p>SDM gi\u00fap m\u1ea1ng m\u1edf r\u1ed9ng quy m\u00f4 m\u00e0 kh\u00f4ng c\u1ea7n c\u00e1p m\u1edbi. \u0110i\u1ec1u n\u00e0y ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 chi ph\u00ed. \u0110\u1ed3ng th\u1eddi, n\u00f3 c\u0169ng chu\u1ea9n b\u1ecb s\u1eb5n s\u00e0ng \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u d\u1eef li\u1ec7u ng\u00e0y c\u00e0ng t\u0103ng trong t\u01b0\u01a1ng lai.<\/p><\/li><li><p>V\u1edbi c\u00e1p quang \u0111a l\u00f5i v\u00e0 c\u00e1p quang \u00edt ch\u1ebf \u0111\u1ed9, SDM n\u00e2ng cao dung l\u01b0\u1ee3ng v\u00e0 t\u00ednh linh ho\u1ea1t c\u1ee7a d\u1eef li\u1ec7u. Vi\u1ec7c n\u00e2ng c\u1ea5p tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n khi c\u00f4ng ngh\u1ec7 ng\u00e0y c\u00e0ng ph\u00e1t tri\u1ec3n.<\/p><\/li><li><p>C\u00e1c b\u1ed9 \u0111a ph\u00e2n chia kh\u00f4ng gian \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong SDM. Ch\u00fang gi\u1eef c\u00e1c t\u00edn hi\u1ec7u t\u00e1ch bi\u1ec7t v\u00e0 g\u1ecdn g\u00e0ng. \u0110i\u1ec1u n\u00e0y gi\u00fap qu\u1ea3n l\u00fd d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 gi\u1ea3m \u0111\u1ed9 tr\u1ec5.<\/p><\/li><li><p>SDM c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111a ph\u00e2n chia theo b\u01b0\u1edbc s\u00f3ng. \u0110i\u1ec1u n\u00e0y gi\u00fap d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n nhanh h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n. N\u00f3 h\u1ed7 tr\u1ee3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ng\u00e0y c\u00e0ng gia t\u0103ng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 \u0110a ph\u00e2n chia kh\u00f4ng gian (SDM) ch\u00ednh x\u00e1c l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 b\u1ea3n ch\u1ea5t, <strong>\u0110a ph\u00e2n chia kh\u00f4ng gian (SDM)<\/strong> l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt nh\u1eb1m t\u0103ng kh\u1ea3 n\u0103ng truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u c\u1ee7a s\u1ee3i c\u00e1p quang b\u1eb1ng c\u00e1ch t\u1ea1o ra nhi\u1ec1u \u0111\u01b0\u1eddng d\u1eabn kh\u00f4ng gian ri\u00eang bi\u1ec7t \u0111\u1ec3 \u00e1nh s\u00e1ng lan truy\u1ec1n. H\u00e3y h\u00ecnh dung n\u00f3 gi\u1ed1ng nh\u01b0 vi\u1ec7c bi\u1ebfn m\u1ed9t con \u0111\u01b0\u1eddng n\u00f4ng th\u00f4n ch\u1ec9 c\u00f3 m\u1ed9t l\u00e0n th\u00e0nh m\u1ed9t xa l\u1ed9 nhi\u1ec1u l\u00e0n. Thay v\u00ec ch\u1ec9 c\u00f3 m\u1ed9t \u201cl\u00e0n\u201d \u00e1nh s\u00e1ng duy nh\u1ea5t, SDM t\u1ea1o ra nhi\u1ec1u l\u00e0n song song b\u00ean trong m\u1ed9t s\u1ee3i c\u00e1p quang, m\u1ed7i l\u00e0n mang m\u1ed9t lu\u1ed3ng d\u1eef li\u1ec7u \u0111\u1ed9c l\u1eadp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t b\u01b0\u1edbc chuy\u1ec3n \u0111\u1ed5i mang t\u00ednh \u0111\u1ed9t ph\u00e1 so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p truy\u1ec1n th\u1ed1ng nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/tdm-time-division-multiplexing-basics-uses-benefits-guide\/\"><strong>\u0110a h\u1ee3p ph\u00e2n chia theo th\u1eddi gian (TDM)<\/strong><\/a> or <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/wdm-optical-transceiver-module-applications\/\"><strong>\u0110a Truy Nh\u1eadp Ph\u00e2n Chia Theo B\u01b0\u1edbc S\u00f3ng (WDM)<\/strong><\/a>, v\u1ed1n truy\u1ec1n nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n qua m\u1ed9t l\u00f5i duy nh\u1ea5t b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c khe th\u1eddi gian ho\u1eb7c c\u00e1c m\u00e0u \u00e1nh s\u00e1ng kh\u00e1c nhau. SDM ti\u1ebfn xa h\u01a1n b\u1eb1ng c\u00e1ch t\u1eadn d\u1ee5ng ch\u00ednh kh\u00f4ng gian nh\u01b0 m\u1ed9t chi\u1ec1u m\u1edbi \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111a ph\u00e2n chia.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 SDM ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? C\u00e1c nguy\u00ean l\u00fd c\u1ed1t l\u00f5i<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"620\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5344b773bfb34f6b837e559c8ef27a81.webp\" alt=\"Space Division Multiplexing\" class=\"wp-image-6542\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5344b773bfb34f6b837e559c8ef27a81.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5344b773bfb34f6b837e559c8ef27a81-300x155.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5344b773bfb34f6b837e559c8ef27a81-1024x529.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5344b773bfb34f6b837e559c8ef27a81-768x397.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5344b773bfb34f6b837e559c8ef27a81-18x9.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">SDM khai th\u00e1c hai chi\u1ebfn l\u01b0\u1ee3c ch\u00ednh \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u01b0\u1eddng d\u1eabn kh\u00f4ng gian n\u00e0y:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p style=\"margin: 0px;\"><strong>S\u1ee3i c\u00e1p quang \u0111a l\u00f5i (MCF):<\/strong> S\u1ee3i quang n\u00e0y c\u00f3 nhi\u1ec1u l\u00f5i \u0111\u1ed9c l\u1eadp \u0111\u01b0\u1ee3c nh\u00fang trong m\u1ed9t l\u1edbp v\u1ecf b\u1ecdc chung. M\u1ed7i l\u00f5i ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t h\u01b0\u1edbng d\u1eabn s\u00f3ng quang ri\u00eang bi\u1ec7t, v\u1ec1 hi\u1ec7u qu\u1ea3 cho ph\u00e9p nhi\u1ec1u s\u1ee3i quang truy\u1ec1n th\u1ed1ng t\u1ed3n t\u1ea1i trong c\u00f9ng m\u1ed9t k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd c\u1ee7a c\u00e1p. D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ed3ng th\u1eddi qua t\u1ea5t c\u1ea3 c\u00e1c l\u00f5i.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>S\u1ee3i quang \u0111a mode \u00edt (FMF) \/ S\u1ee3i quang \u0111a mode (MMF):<\/strong> C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y s\u1eed d\u1ee5ng m\u1ed9t l\u00f5i \u0111\u01a1n nh\u01b0ng l\u1edbn h\u01a1n, v\u00e0 k\u00edch th\u00edch c\u00e1c \u201cmode\u201d c\u1ee5 th\u1ec3, r\u1eddi r\u1ea1c <strong>\u201cmode\u201d<\/strong> ho\u1eb7c c\u00e1c \u0111\u01b0\u1eddng \u0111i m\u00e0 \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 lan truy\u1ec1n b\u00ean trong l\u00f5i \u0111\u00f3. Vi\u1ec7c x\u1eed l\u00fd t\u00edn hi\u1ec7u tinh vi (\u0111a \u0111\u1ea7u v\u00e0o \u2013 \u0111a \u0111\u1ea7u ra, hay MIMO) t\u1ea1i thi\u1ebft b\u1ecb thu ph\u00e1t l\u00e0 b\u1eaft bu\u1ed9c \u0111\u1ec3 t\u00e1ch c\u00e1c lu\u1ed3ng d\u1eef li\u1ec7u \u1edf \u0111\u1ea7u thu.<\/p><\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 SDM so v\u1edbi k\u1ef9 thu\u1eadt gh\u00e9p k\u00eanh truy\u1ec1n th\u1ed1ng: So s\u00e1nh nhanh<\/strong><\/h2>\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>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/wdm-optical-transceiver-module-applications\/\">\u0110a Truy Nh\u1eadp Ph\u00e2n Chia Theo B\u01b0\u1edbc S\u00f3ng (WDM)<\/a><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u0110a ph\u00e2n chia kh\u00f4ng gian (SDM)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Nguy\u00ean l\u00fd c\u1ed1t l\u00f5i<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng c\u00e1c m\u00e0u s\u1eafc (b\u01b0\u1edbc s\u00f3ng) kh\u00e1c nhau c\u1ee7a \u00e1nh s\u00e1ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng c\u00e1c \u0111\u01b0\u1eddng d\u1eabn v\u1eadt l\u00fd ri\u00eang bi\u1ec7t (l\u00f5i ho\u1eb7c mode)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>So s\u00e1nh t\u01b0\u01a1ng t\u1ef1<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u00eam nhi\u1ec1u xe v\u00e0o m\u1ed9t l\u00e0n \u0111\u01b0\u1eddng duy nh\u1ea5t b\u1eb1ng c\u00e1ch d\u00f9ng c\u00e1c m\u00e0u kh\u00e1c nhau<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u00eam nhi\u1ec1u l\u00e0n \u0111\u01b0\u1eddng v\u00e0o xa l\u1ed9<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ecb gi\u1edbi h\u1ea1n b\u1edfi phi tuy\u1ebfn s\u1ee3i quang v\u00e0 ph\u1ed5 t\u1ea7n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cao b\u1eb1ng c\u00e1ch th\u00eam nhi\u1ec1u l\u00f5i\/mode h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p (c\u00f4ng ngh\u1ec7 tr\u01b0\u1edfng th\u00e0nh)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao (y\u00eau c\u1ea7u c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn <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> &amp; MIMO)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>L\u1ee3i \u00edch Ch\u00ednh<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1eed d\u1ee5ng ph\u1ed5 t\u1ea7n hi\u1ec7u qu\u1ea3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u0103ng dung l\u01b0\u1ee3ng theo c\u1ea5p s\u1ed1 nh\u00e2n kh\u1ed5ng l\u1ed3<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 V\u00ec sao SDM l\u00e0 b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1? C\u00e1c l\u1ee3i \u00edch ch\u00ednh<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>T\u0103ng dung l\u01b0\u1ee3ng theo c\u1ea5p s\u1ed1 m\u0169:<\/strong> SDM mang l\u1ea1i hi\u1ec7u \u1ee9ng nh\u00e2n tr\u1ef1c ti\u1ebfp l\u00ean dung l\u01b0\u1ee3ng. M\u1ed9t s\u1ee3i quang 7 l\u00f5i c\u00f3 th\u1ec3, v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft, t\u0103ng dung l\u01b0\u1ee3ng l\u00ean 7 l\u1ea7n so v\u1edbi s\u1ee3i quang m\u1ed9t l\u00f5i.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Ti\u1ebft ki\u1ec7m kh\u00f4ng gian v\u1eadt l\u00fd v\u00e0 chi ph\u00ed:<\/strong> Vi\u1ec7c tri\u1ec3n khai m\u1ed9t c\u00e1p SDM hi\u1ec7u qu\u1ea3 h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c l\u1eafp \u0111\u1eb7t nhi\u1ec1u c\u00e1p ri\u00eang l\u1ebb, gi\u00fap gi\u1ea3m t\u1eafc ngh\u1ebdn \u1ed1ng d\u1eabn, r\u00fat ng\u1eafn th\u1eddi gian l\u1eafp \u0111\u1eb7t v\u00e0 gi\u1ea3m chi ph\u00ed tr\u00ean m\u1ed7i bit.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Hi\u1ec7u qu\u1ea3 n\u0103ng l\u01b0\u1ee3ng:<\/strong> Truy\u1ec1n nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n qua m\u1ed9t s\u1ee3i quang gi\u00fap gi\u1ea3m n\u0103ng l\u01b0\u1ee3ng ti\u00eau th\u1ee5 tr\u00ean m\u1ed7i bit \u0111\u01b0\u1ee3c truy\u1ec1n, g\u00f3p ph\u1ea7n x\u00e2y d\u1ef1ng trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u1ea1ng l\u01b0\u1edbi xanh h\u01a1n.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>\u0110\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng cho t\u01b0\u01a1ng lai c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng:<\/strong> SDM cung c\u1ea5p n\u1ec1n t\u1ea3ng c\u00f4ng ngh\u1ec7 thi\u1ebft y\u1ebfu \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi b\u0103ng th\u00f4ng cao trong t\u01b0\u01a1ng lai nh\u01b0 6G, v\u0169 tr\u1ee5 \u1ea3o (metaverse) v\u00e0 m\u1ea1ng AI n\u00e2ng cao.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 \u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf v\u00e0 vai tr\u00f2 c\u1ee7a quang h\u1ecdc ti\u00ean ti\u1ebfn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>SDM<\/strong> kh\u00f4ng ch\u1ec9 l\u00e0 th\u00ed nghi\u1ec7m trong ph\u00f2ng th\u00ed nghi\u1ec7m; n\u00f3 \u0111ang \u0111\u01b0\u1ee3c tri\u1ec3n khai th\u1ef1c t\u1ebf trong:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p style=\"margin: 0px;\"><strong>C\u00e1c c\u00e1p d\u00e0i v\u00e0 c\u00e1p bi\u1ec3n:<\/strong> N\u01a1i t\u1ed1i \u01b0u h\u00f3a dung l\u01b0\u1ee3ng tr\u00ean m\u1ed7i c\u00e1p l\u00e0 y\u00eau c\u1ea7u h\u00e0ng \u0111\u1ea7u.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Li\u00ean k\u1ebft gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u (DCI):<\/strong> Li\u00ean k\u1ebft c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn v\u1edbi nhu c\u1ea7u b\u0103ng th\u00f4ng l\u1edbn.<\/p><\/li><li><p style=\"margin: 0px;\"><strong>Fronthaul\/Backhaul 5G\/6G:<\/strong> H\u1ed7 tr\u1ee3 m\u1ea1ng l\u01b0\u1edbi d\u00e0y \u0111\u1eb7c c\u00e1c \u00f4 nh\u1ecf (small cells) c\u1ea7n thi\u1ebft cho c\u00e1c m\u1ea1ng di \u0111\u1ed9ng th\u1ebf h\u1ec7 ti\u1ebfp theo.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tri\u1ec3n khai SDM \u0111\u00f2i h\u1ecfi c\u00e1c thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng <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> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 giao ti\u1ebfp v\u1edbi s\u1ee3i quang \u0111a l\u00f5i (Multi-Core) ho\u1eb7c s\u1ee3i quang \u00edt ch\u1ebf \u0111\u1ed9 (Few-Mode). \u0110\u00e2y l\u00e0 n\u01a1i c\u00f4ng ngh\u1ec7 ti\u00ean ti\u1ebfn nh\u1ea5t t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\"><strong>LINK-PP<\/strong><\/a> tr\u1edf n\u00ean then ch\u1ed1t. V\u00ed d\u1ee5, <strong>B\u1ed9 thu ph\u00e1t 400G QSFP-DD SR8 MCF<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t nh\u1eb1m t\u1eadn d\u1ee5ng c\u00f4ng ngh\u1ec7 s\u1ee3i quang \u0111a l\u00f5i, mang l\u1ea1i kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i m\u1eadt \u0111\u1ed9 cao v\u00e0 t\u1ed1c \u0111\u1ed9 cao cho c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u th\u1ebf h\u1ec7 m\u1edbi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 T\u01b0\u01a1ng lai l\u00e0 \u0111a chi\u1ec1u<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110a ph\u00e2n chia theo kh\u00f4ng gian (Space Division Multiplexing)<\/strong> l\u00e0 m\u1ed9t b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 c\u00e1ch m\u1ea1ng trong truy\u1ec1n th\u00f4ng quang h\u1ecdc. B\u1eb1ng c\u00e1ch khai th\u00e1c chi\u1ec1u kh\u00f4ng gian, SDM m\u1edf ra con \u0111\u01b0\u1eddng r\u00f5 r\u00e0ng \u0111\u1ec3 v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n dung l\u01b0\u1ee3ng v\u00e0 x\u00e2y d\u1ef1ng c\u00e1c m\u1ea1ng c\u00f3 dung l\u01b0\u1ee3ng c\u1ef1c cao cho t\u01b0\u01a1ng lai. M\u1eb7c d\u00f9 v\u1eabn c\u00f2n nh\u1eefng th\u00e1ch th\u1ee9c trong s\u1ea3n xu\u1ea5t v\u00e0 x\u1eed l\u00fd t\u00edn hi\u1ec7u, ti\u1ec1m n\u0103ng c\u1ee7a SDM l\u00e0 \u0111i\u1ec1u kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u1eb5n s\u00e0ng kh\u00e1m ph\u00e1 c\u00e1ch c\u00f4ng ngh\u1ec7 SDM c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 t\u01b0\u01a1ng lai c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng c\u1ee7a b\u1ea1n?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/page\/aboutus.htm\"><strong>LINK-PP<\/strong><\/a> \u0111ang \u0111i \u0111\u1ea7u trong vi\u1ec7c ph\u00e1t tri\u1ec3n <strong>b\u1ed9 thu ph\u00e1t quang hi\u1ec7u n\u0103ng cao<\/strong>, bao g\u1ed3m c\u00e1c gi\u1ea3i ph\u00e1p t\u01b0\u01a1ng th\u00edch v\u1edbi SDM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u27a1\ufe0f \u0110\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n v\u1ec1 nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n? <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/support.htm\"><strong>Li\u00ean h\u1ec7 ngay v\u1edbi c\u00e1c chuy\u00ean gia c\u1ee7a ch\u00fang t\u00f4i!<\/strong><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a3 C\u00c2U H\u1eceI TH\u01af\u1edcNG G\u1eb6P<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110a ph\u00e2n chia theo kh\u00f4ng gian \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec trong m\u1ea1ng s\u1ee3i quang?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n s\u1eed d\u1ee5ng ph\u00e2n chia kh\u00f4ng gian (space division multiplexing) \u0111\u1ec3 truy\u1ec1n nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n trong m\u1ed9t s\u1ee3i quang. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y gi\u00fap b\u1ea1n m\u1edf r\u1ed9ng m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n c\u00e1p m\u1edbi. B\u1ea1n c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng v\u00e0 thi\u1ebft b\u1ecb h\u01a1n v\u1edbi c\u00f9ng m\u1ed9t c\u1ea5u h\u00ecnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110i\u1ec1u g\u00ec l\u00e0m cho s\u1ee3i quang \u0111a l\u00f5i kh\u00e1c bi\u1ec7t so v\u1edbi s\u1ee3i quang th\u00f4ng th\u01b0\u1eddng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ee3i quang \u0111a l\u00f5i c\u00f3 nhi\u1ec1u l\u00f5i b\u00ean trong m\u1ed9t c\u00e1p duy nh\u1ea5t. M\u1ed7i l\u00f5i mang t\u00edn hi\u1ec7u ri\u00eang c\u1ee7a n\u00f3. S\u1ee3i quang th\u00f4ng th\u01b0\u1eddng ch\u1ec9 c\u00f3 m\u1ed9t l\u00f5i. S\u1ee3i quang \u0111a l\u00f5i cung c\u1ea5p cho b\u1ea1n nhi\u1ec1u l\u00e0n truy\u1ec1n d\u1eef li\u1ec7u h\u01a1n. \u0110i\u1ec1u n\u00e0y gi\u00fap m\u1ea1ng c\u1ee7a b\u1ea1n nhanh h\u01a1n v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0o b\u1ea1n g\u1eb7p ph\u1ea3i khi s\u1eed d\u1ee5ng SDM?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u1ea7n thi\u1ebft b\u1ecb \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 gi\u1eef c\u00e1c t\u00edn hi\u1ec7u t\u00e1ch bi\u1ec7t. \u0110\u00f4i khi t\u00edn hi\u1ec7u b\u1ecb tr\u1ed9n l\u1eabn gi\u1eefa c\u00e1c l\u00f5i. Nh\u00e2n vi\u00ean ph\u1ea3i h\u1ecdc c\u00e1ch v\u1eadn h\u00e0nh c\u00f4ng ngh\u1ec7 m\u1edbi. C\u00e1c c\u00f4ng c\u1ee5 n\u00e2ng cao c\u00f3 th\u1ec3 t\u1ed1n k\u00e9m h\u01a1n. Vi\u1ec7c l\u1eadp k\u1ebf ho\u1ea1ch k\u1ef9 l\u01b0\u1ee1ng s\u1ebd gi\u00fap b\u1ea1n gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >SDM \u0111\u00f3ng vai tr\u00f2 g\u00ec trong m\u1ed9t h\u1ec7 th\u1ed1ng c\u1ea3m bi\u1ebfn?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n s\u1eed d\u1ee5ng SDM \u0111\u1ec3 c\u1ea3i thi\u1ec7n h\u1ec7 th\u1ed1ng c\u1ea3m bi\u1ebfn. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y g\u1eedi nhi\u1ec1u t\u00edn hi\u1ec7u qua c\u00e1c \u0111\u01b0\u1eddng d\u1eabn kh\u00e1c nhau. B\u1ea1n c\u00f3 th\u1ec3 thu th\u1eadp nhi\u1ec1u d\u1eef li\u1ec7u h\u01a1n c\u00f9ng l\u00fac. B\u1ea1n c\u00f3 th\u1ec3 gi\u00e1m s\u00e1t nhi\u1ec1u v\u1ecb tr\u00ed ho\u1eb7c nhi\u1ec1u \u0111\u1ed1i t\u01b0\u1ee3ng b\u1eb1ng m\u1ed9t s\u1ee3i quang duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y gi\u00fap h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng t\u1ed1t h\u01a1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c k\u1ebft h\u1ee3p SDM v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n chia \u0111a truy nh\u1eadp kh\u00e1c l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u nhanh h\u01a1n v\u00e0 nhi\u1ec1u l\u1ef1a ch\u1ecdn h\u01a1n. Vi\u1ec7c s\u1eed d\u1ee5ng SDM c\u00f9ng v\u1edbi ph\u00e2n chia \u0111a truy nh\u1eadp theo b\u01b0\u1edbc s\u00f3ng (wavelength division multiplexing) cho ph\u00e9p b\u1ea1n khai th\u00e1c c\u1ea3 kh\u00f4ng gian v\u00e0 m\u00e0u s\u1eafc. \u0110i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n t\u1eadn d\u1ee5ng t\u1ed1i \u0111a s\u1ee3i quang v\u00e0 chu\u1ea9n b\u1ecb cho t\u01b0\u01a1ng lai.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0110a truy nh\u1eadp ph\u00e2n chia theo kh\u00f4ng gian t\u0103ng dung l\u01b0\u1ee3ng m\u1ea1ng s\u1ee3i quang b\u1eb1ng c\u00e1ch g\u1eedi nhi\u1ec1u lu\u1ed3ng d\u1eef li\u1ec7u qua c\u00e1c \u0111\u01b0\u1eddng d\u1eabn ri\u00eang bi\u1ec7t trong m\u1ed9t c\u00e1p duy nh\u1ea5t.<\/p>","protected":false},"author":1,"featured_media":6541,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[24],"class_list":["post-6543","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-link-pp"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/6543","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=6543"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/6543\/revisions"}],"predecessor-version":[{"id":11164,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/6543\/revisions\/11164"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/6541"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=6543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=6543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=6543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}