{"id":18261,"date":"2025-02-21T01:26:49","date_gmt":"2025-02-21T01:26:49","guid":{"rendered":"https:\/\/dekam-fiber.com\/?p=18261"},"modified":"2025-04-01T02:25:50","modified_gmt":"2025-04-01T02:25:50","slug":"fiber-optic-cable-core","status":"publish","type":"post","link":"https:\/\/dekam-fiber.com\/vi\/fiber-optic-cable-core\/","title":{"rendered":"L\u00f5i c\u00e1p quang: T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1c lo\u1ea1i v\u00e0 c\u00f4ng d\u1ee5ng c\u1ee7a n\u00f3"},"content":{"rendered":"<p>Trong th\u1ebf gi\u1edbi ng\u00e0y nay, <a href=\"https:\/\/dekam-fiber.com\/vi\/aerial-fiber-optic-cable\/\" target=\"_blank\" rel=\"noreferrer noopener\">c\u00e1p quang<\/a> th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft m\u1ecdi l\u0129nh v\u1ef1c v\u00ec ch\u00fang gi\u00fap truy\u1ec1n d\u1eef li\u1ec7u nhanh ch\u00f3ng qua kho\u1ea3ng c\u00e1ch xa. Tuy nhi\u00ean, n\u1ebfu kh\u00f4ng c\u00f3 l\u00f5i, c\u00e1p quang s\u1ebd v\u00f4 d\u1ee5ng. L\u00fd do l\u00e0 l\u00f5i v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n \u1ea9n n\u1eb1m \u1edf v\u1ecb tr\u00ed nh\u1eadn t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng.&nbsp;<\/p>\n\n\n\n<p>Don&#8217;t worry, in this guide, we\u2019ll discuss in detail what the fiber optic core is and its role in data transmission. Moreover, we&#8217;ll also explore the different types of fiber optic cores available as well as how core quantity affects performance. So, keep reading!<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXdWxptC7U1ZcOQtXCPYmAVcoQqBrdR084Xxu4Qlz3s2YUWCUSM3vmEPz0n4s0IBLNHW8BJN6XISWBwXA88y2eDK3QMIOsuQVmZxupPbd0BUjyQm3NI0U7PbIGdYuTGSVkXQHyXPCw?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"ch\u1ea5t x\u01a1\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1) <\/strong><strong>C\u00e1p quang l\u00e0 g\u00ec <\/strong><strong>L\u00f5i?<\/strong><\/h2>\n\n\n\n<p>\u201cC\u00e1c<a href=\"https:\/\/en.wikipedia.org\/wiki\/Core_(optical_fiber)\" target=\"_blank\" rel=\"noreferrer noopener\"> l\u00f5i c\u1ee7a c\u00e1p quang<\/a> l\u00e0 ph\u1ea7n trong su\u1ed1t \u1edf gi\u1eefa c\u1ee7a s\u1ee3i quang \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u1ee7y tinh ho\u1eb7c nh\u1ef1a, th\u1ef1c s\u1ef1 nh\u1eadn t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u.\u201d<\/p>\n\n\n\n<p>Tuy nhi\u00ean, khi \u00e1nh s\u00e1ng \u0111i v\u00e0o l\u00f5i, n\u00f3 c\u1ea7n ph\u1ea3i \u1edf l\u1ea1i b\u00ean trong l\u00f5i, v\u00e0 m\u1ed9t l\u1edbp \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u \u0111\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 l\u1edbp ph\u1ee7. Do l\u1edbp ph\u1ee7 n\u00e0y, \u00e1nh s\u00e1ng c\u00f3 th\u1ec3 ph\u1ea3n x\u1ea1 tr\u1edf l\u1ea1i (ph\u1ea3n x\u1ea1) thay v\u00ec tho\u00e1t kh\u1ecfi l\u00f5i. V\u1edbi hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1eb7c bi\u1ec7t n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea3n x\u1ea1 to\u00e0n ph\u1ea7n b\u00ean trong, t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 duy tr\u00ec \u0111\u1ee7 m\u1ea1nh trong th\u1eddi gian \u0111\u1ee7 d\u00e0i \u0111\u1ec3 d\u1eef li\u1ec7u c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c, ngh\u0129a l\u00e0 b\u1ea1n kh\u00f4ng g\u1eb7p ph\u1ea3i t\u00ecnh tr\u1ea1ng tr\u1ec5.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXf5rkLfQrWv3iJWBX2VIM0RPD4KAH39LHteoIbHolvW48F0ql9yTy1Q4myfuvQ1oISZewkNiNlJXPBQ8uaIZ36M8GpH6IXR5rEIpuoGzqMowVLSt9MzrZ2ch68h6GxbkqV3IPIVYA?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"C\u1ea5u tr\u00fac c\u00e1p quang\"\/><\/figure>\n\n\n\n<p>T\u00f3m l\u1ea1i, t\u00f4i ph\u1ea3i n\u00f3i r\u1eb1ng n\u1ebfu kh\u00f4ng c\u00f3 l\u00f5i, c\u00e1p quang s\u1ebd v\u00f4 d\u1ee5ng. B\u1ea1n bi\u1ebft \u0111\u1ea5y, m\u1ed7i l\u1ea7n b\u1ea1n g\u1eedi tin nh\u1eafn ho\u1eb7c truy c\u1eadp trang web, nh\u1eefng lu\u1ed3ng s\u00e1ng nh\u1ecf s\u1ebd ch\u1ea1y qua c\u00e1c l\u00f5i n\u00e0y, cung c\u1ea5p th\u00f4ng tin cho b\u1ea1n v\u1edbi t\u1ed1c \u0111\u1ed9 \u00e1nh s\u00e1ng (299 792 458 m\/s).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2) <\/strong><strong>C\u00e1c lo\u1ea1i c\u00e1p quang<\/strong><strong> L\u00f5i<\/strong><\/h2>\n\n\n\n<p>Ch\u00fang ta h\u00e3y n\u00f3i v\u1ec1 c\u00e1c lo\u1ea1i l\u00f5i m\u00e0 c\u00e1p quang th\u01b0\u1eddng c\u00f3. V\u00e2ng! B\u1ea1n c\u00f3 th\u1ec3 ph\u00e2n lo\u1ea1i l\u00f5i s\u1ee3i th\u00e0nh hai lo\u1ea1i c\u01a1 b\u1ea3n, v\u00ed d\u1ee5;&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D\u1ef1a tr\u00ean h\u1ed3 s\u01a1 chi\u1ebft su\u1ea5t<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Tr\u01b0\u1edbc h\u1ebft, t\u00f4i ngh\u0129 t\u00f4i ph\u1ea3i l\u00e0m r\u00f5 kh\u00e1i ni\u1ec7m chi\u1ebft su\u1ea5t \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n. V\u00ec v\u1eady, chi\u1ebft su\u1ea5t th\u1ef1c s\u1ef1 l\u00e0 \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u cho th\u1ea5y l\u01b0\u1ee3ng \u00e1nh s\u00e1ng b\u1ecb ch\u1eadm l\u1ea1i khi \u0111i v\u00e0o v\u1eadt li\u1ec7u nh\u01b0 l\u00f5i (do t\u01b0\u01a1ng t\u00e1c).&nbsp;&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>i) L\u00f5i Step-Index<\/strong><\/h4>\n\n\n\n<p>&#8220;A step-index core has&nbsp; the same refractive index&nbsp; in the core and the cladding, making light reflect in a zigzag pattern.&#8221;<\/p>\n\n\n\n<p>N\u1ebfu b\u1ea1n c\u1ea7n m\u1ed9t s\u1ee3i quang c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u1ea3 kho\u1ea3ng c\u00e1ch d\u00e0i v\u00e0 ng\u1eafn, th\u00ec c\u00e1p l\u00f5i step-index l\u00e0 th\u1ee9 b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm. Tuy nhi\u00ean, c\u00f3 m\u1ed9t \u0111i\u1ec1u \u0111\u00e1ng l\u01b0u \u00fd l\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c n\u00f3 l\u00e0 \u0111\u01a1n hay \u0111a ch\u1ebf \u0111\u1ed9.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/dekam-fiber.com\/vi\/single-mode-vs-multimode-fiber\/\" target=\"_blank\" rel=\"noreferrer noopener\">S\u1ee3i l\u00f5i b\u01b0\u1edbc \u0111\u01a1n mode<\/a> <\/strong>l\u00e0 m\u1ed9t lo\u1ea1i s\u1ee3i c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u00f5i nh\u1ecf kho\u1ea3ng 8-10 micromet. N\u00f3 cho ph\u00e9p truy\u1ec1n ch\u1ec9 m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn \u00e1nh s\u00e1ng, gi\u00fap gi\u1ea3m thi\u1ec3u m\u1ea5t d\u1eef li\u1ec7u khi truy\u1ec1n \u0111i xa. \u0110i\u1ec1u n\u00e0y <a href=\"https:\/\/dekam-fiber.com\/vi\/fiber-optic-cable-types\/\" target=\"_blank\" rel=\"noreferrer noopener\">lo\u1ea1i s\u1ee3i<\/a> \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng v\u00e0 internet.\u00a0<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfCzsk5gdBwoXBO0hcORl3WQlalR7pA45Rd18xUVjLfshU4o1ozstyY4HtFTtge7qEpKz0OEkyBZJVwA3OVaWWg5iEGRMiH9ujxeWDudU0hktE7aFjdh-mgLYm3SIfdDPKF0EOtSQ?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"B\u01b0\u1edbc-Ch\u1ec9 s\u1ed1 c\u1ed1t l\u00f5i\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>L\u00f5i s\u1ee3i quang b\u01b0\u1edbc \u0111a mode<\/strong> \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o v\u1edbi \u0111\u01b0\u1eddng k\u00ednh l\u00f5i l\u1edbn h\u01a1n kho\u1ea3ng 50-100 micromet cho ph\u00e9p s\u1eed d\u1ee5ng nhi\u1ec1u \u0111\u01b0\u1eddng d\u1eabn \u00e1nh s\u00e1ng. \u0110i\u1ec1u n\u00e0y kh\u00f4ng h\u1eefu \u00edch l\u1eafm \u0111\u1ed1i v\u1edbi kho\u1ea3ng c\u00e1ch xa. \u0110i\u1ec1u n\u00e0y l\u00e0 do s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 th\u1eddi gian \u0111\u1ebfn c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng d\u1eabn \u00e1nh s\u00e1ng kh\u00e1c nhau c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 bi\u1ebfn d\u1ea1ng c\u1ee7a t\u00edn hi\u1ec7u. Tuy nhi\u00ean, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i ch\u00fang trong m\u1ea1ng c\u1ee5c b\u1ed9 (LAN).<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>ii) L\u00f5i ch\u1ec9 s\u1ed1 ph\u00e2n lo\u1ea1i<\/strong><\/h4>\n\n\n\n<p>\u201cL\u00f5i c\u00f3 chi\u1ebft su\u1ea5t ph\u00e2n lo\u1ea1i c\u00f3 chi\u1ebft su\u1ea5t thay \u0111\u1ed5i (cao \u1edf l\u00f5i v\u00e0 th\u1ea5p \u1edf l\u1edbp v\u1ecf) do \u0111\u00f3 gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a s\u1ef1 bi\u1ebfn d\u1ea1ng c\u1ee7a t\u00edn hi\u1ec7u nh\u1eadn \u0111\u01b0\u1ee3c.\u201d&nbsp;<\/p>\n\n\n\n<p>Tuy nhi\u00ean, n\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm s\u1ee3i quang cho ph\u00e9p t\u1ed1c \u0111\u1ed9 cao h\u01a1n tr\u00ean ph\u1ea1m vi trung b\u00ecnh, th\u00ec s\u1ee3i quang c\u00f3 ch\u1ec9 s\u1ed1 ph\u00e2n lo\u1ea1i l\u00e0 c\u00e2u tr\u1ea3 l\u1eddi. H\u00e3y \u0111\u1ec3 t\u00f4i gi\u1ea3i th\u00edch t\u1ea1i sao l\u1ea1i nh\u01b0 v\u1eady;&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXcHB3QI45evonEoGPx_jqa7qYzWPsNTt67is7SPx1dGr98payrfvccYc6ZzIa0DXrCFxY7ryEirpeWpEAoLhoaIX_h8kJ0on1vFB6tQkINpmT1Nqwhlwjq7PiPU38cq3ynM_sL5Qg?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"L\u00f5i ch\u1ec9 s\u1ed1 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i\"\/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nh\u01b0 \u0111\u00e3 th\u1ea3o lu\u1eadn \u1edf tr\u00ean, n\u00f3 c\u00f3 chi\u1ebft su\u1ea5t cao \u1edf l\u00f5i, do \u0111\u00f3, \u00e1nh s\u00e1ng s\u1ebd di chuy\u1ec3n ch\u1eadm h\u01a1n \u1edf \u0111\u00e2y. M\u1eb7t kh\u00e1c, khi n\u00f3 ch\u1ea1m v\u00e0o l\u1edbp v\u1ecf b\u1ecdc (l\u1edbp ngo\u00e0i), t\u1ed1c \u0111\u1ed9 c\u1ee7a n\u00f3 tr\u1edf n\u00ean cao h\u01a1n, do \u0111\u00f3 c\u00e2n b\u1eb1ng th\u1eddi gian di chuy\u1ec3n c\u1ee7a \u0111\u01b0\u1eddng \u0111i c\u1ee7a \u00e1nh s\u00e1ng v\u00e0 duy tr\u00ec \u0111\u1ed9 r\u00f5 n\u00e9t trong t\u00edn hi\u1ec7u.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nh\u1eefng s\u1ee3i quang n\u00e0y c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong c\u00e1c m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u, c\u0169ng nh\u01b0 trong h\u1ec7 th\u1ed1ng truy\u1ec1n h\u00ecnh c\u00e1p.<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D\u1ef1a tr\u00ean th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u<\/strong><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>i) S\u1ee3i l\u00f5i th\u1ee7y tinh<\/strong><\/h4>\n\n\n\n<p>S\u1ee3i l\u00f5i th\u1ee7y tinh \u0111\u01b0\u1ee3c c\u1ea5u th\u00e0nh t\u1eeb silica c\u00f3 \u0111\u1ed9 tinh khi\u1ebft cao (SiO2), do \u0111\u00f3 n\u00f3 cung c\u1ea5p \u0111\u1ed9 m\u00e9o t\u00edn hi\u1ec7u t\u1ed1i thi\u1ec3u (kho\u1ea3ng 0,2 dB\/km \u1edf 1550 nm). Ngo\u00e0i ra, nh\u1eefng s\u1ee3i n\u00e0y kh\u00e1 b\u1ec1n v\u1edbi s\u1ef1 thay \u0111\u1ed5i c\u1ee7a nhi\u1ec7t \u0111\u1ed9, n\u01b0\u1edbc v\u00e0 tia c\u1ef1c t\u00edm.<\/p>\n\n\n\n<p>V\u00ec v\u1eady, n\u1ebfu lu\u00f4n ph\u1ea3i ph\u1ee7 s\u00f3ng m\u1ed9t kho\u1ea3ng c\u00e1ch xa, s\u1ee3i th\u1ee7y tinh l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t cho m\u1ee5c \u0111\u00edch \u0111\u00f3. B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i c\u00e1p quang n\u00e0y cho vi\u1ec5n th\u00f4ng, h\u00ecnh \u1ea3nh y t\u1ebf v\u00e0 m\u1ea1ng internet.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXc_DKZBgCG6WLhyIHiDHoLmIW1EFjU59xt3ne45-BtAoJWbDgzY5tfw51BOmfDVxOmPRgRWLbDc16h1za2264_NYKCNFcnPXdD6KdxV1phJmqDH5-gZ9GtYncdUVspbtckL_4tU?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"S\u1ee3i l\u00f5i th\u1ee7y tinh\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>ii) S\u1ee3i l\u00f5i nh\u1ef1a (POF):&nbsp;<\/strong><\/h4>\n\n\n\n<p>M\u1ed9t s\u1ee3i c\u00f3 l\u00f5i l\u00e0m b\u1eb1ng polyme nhi\u1ec7t d\u1ebbo trong su\u1ed1t \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 PMMA (Polymethyl methacrylate). L\u00f5i c\u1ee7a ch\u00fang (~0,5-1 mm) l\u1edbn h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi s\u1ee3i th\u1ee7y tinh, gi\u00fap ch\u00fang d\u1ec5 l\u1eafp \u0111\u1eb7t h\u01a1n. Tuy nhi\u00ean, ch\u00fang c\u00f3 \u0111\u1ed9 m\u1ea5t t\u00edn hi\u1ec7u cao h\u01a1n (~10-20 dB\/km) khi\u1ebfn ch\u00fang k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n khi truy\u1ec1n \u0111i xa h\u01a1n.&nbsp;<\/p>\n\n\n\n<p>V\u00ec v\u1eady, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng l\u01b0\u1edbi \u00f4 t\u00f4, h\u1ec7 th\u1ed1ng internet gia \u0111\u00ecnh v\u00e0 th\u1eadm ch\u00ed trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXeswfVJX0O584qfuBUgaRfHyDYdbhPhTNzcwcx2_fVpQ-YRIBWPF7RyHVGWHKPSN9qDNM8N6Pg8ewMsKk4klCnj9R0OpSMzkWFfdf4_mqs0BoKBvjRGjNstimDxOftYQduzE7Ldxg?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"S\u1ee3i l\u00f5i nh\u1ef1a\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>iii) S\u1ee3i tinh th\u1ec3 quang t\u1eed (PCF)<\/strong><\/h4>\n\n\n\n<p>S\u1ee3i tinh th\u1ec3 quang t\u1eed c\u00f3 l\u00f5i \u0111\u1eb7c bi\u1ec7t v\u1edbi nhi\u1ec1u l\u1ed7 kh\u00ed nh\u1ecf d\u1eabn truy\u1ec1n s\u00f3ng \u00e1nh s\u00e1ng. PCF kh\u00f4ng s\u1eed d\u1ee5ng l\u00f5i r\u1eafn \u0111\u1ec3 d\u1eabn \u00e1nh s\u00e1ng, thay v\u00e0o \u0111\u00f3, ch\u00fang s\u1eed d\u1ee5ng c\u00e1c l\u1ed7 kh\u00ed c\u1ef1c nh\u1ecf l\u00e0m m\u00f4i tr\u01b0\u1eddng d\u1eabn \u00e1nh s\u00e1ng.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXcEDDm1XHAA4IVq8_lqHQxF3KIxukk4668bAo3iX-LTVcRdo8emY2eQ4zVQ84LCpUEyTFQoLrvt-LNdK09erlUEvX5fiCcGJYfcodNEj-NhADlwvq0jG4zhgb-ui3DKkEQU5EIrAg?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"S\u1ee3i tinh th\u1ec3 quang t\u1eed\"\/><\/figure>\n\n\n\n<p>Do \u0111\u00f3, ch\u00fang c\u00f3 \u0111\u1ed9 suy gi\u1ea3m t\u00edn hi\u1ec7u th\u1ea5p ch\u01b0a t\u1eebng c\u00f3 v\u00e0 kh\u1ea3 n\u0103ng x\u1eed l\u00fd c\u00f4ng su\u1ea5t \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1c s\u1ee3i truy\u1ec1n th\u1ed1ng. Do \u0111\u00f3, c\u00e1c s\u1ee3i nh\u01b0 v\u1eady ph\u1ee5c v\u1ee5 m\u1ee5c \u0111\u00edch v\u00f4 th\u1ee9c trong c\u00e1c tia laser c\u00f4ng su\u1ea5t cao, c\u1ea3m bi\u1ebfn ch\u00ednh x\u00e1c v\u00e0 m\u1ee5c \u0111\u00edch nghi\u00ean c\u1ee9u khoa h\u1ecdc h\u01b0\u1edbng t\u1edbi t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3) C\u00f3 bao nhi\u00eau l\u00f5i trong c\u00e1p quang<\/strong><\/h2>\n\n\n\n<p>C\u00e1p quang c\u00f3 th\u1ec3 c\u00f3 l\u00f5i \u0111\u01a1n ho\u1eb7c nhi\u1ec1u l\u00f5i. Nh\u01b0ng h\u00e3y nh\u1edb! Khi s\u1ed1 l\u00f5i t\u0103ng l\u00ean trong c\u00e1p, l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn h\u01a1n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ed3ng th\u1eddi.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C\u1ea5u h\u00ecnh l\u00f5i chung v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng ch\u00fang<\/strong><\/li>\n<\/ul>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 b\u1ed1i r\u1ed1i v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng l\u00f5i n\u00e0o l\u00e0 t\u1ed1t nh\u1ea5t. \u0110\u00fang kh\u00f4ng? V\u00ec v\u1eady, ch\u00fang ta h\u00e3y xem x\u00e9t s\u1ed1 l\u01b0\u1ee3ng l\u00f5i ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng c\u1ee7a ch\u00fang.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>i) C\u00e1p quang l\u00f5i \u0111\u01a1n&nbsp;<\/strong>(C\u00e1p quang 1 l\u00f5i)<\/h3>\n\n\n\n<p>N\u00f3 ch\u1ec9 c\u00f3 m\u1ed9t l\u00f5i v\u00e0 r\u1ea5t ph\u00f9 h\u1ee3p cho truy\u1ec1n th\u00f4ng t\u1ea7m xa. Nh\u1eefng lo\u1ea1i c\u00e1p nh\u01b0 v\u1eady c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong m\u1ea1ng vi\u1ec5n th\u00f4ng, laser y t\u1ebf, truy\u1ec1n th\u00f4ng qu\u00e2n s\u1ef1 v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>ii) C\u00e1p quang 2 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>S\u1ee3i quang 2 l\u00f5i l\u00e0 t\u1ed1t nh\u1ea5t cho c\u00e1c k\u1ebft n\u1ed1i \u0111\u01a1n gi\u1ea3n nh\u1ea5t nh\u01b0 li\u00ean k\u1ebft \u0111i\u1ec3m-\u0111i\u1ec3m gi\u1eefa hai thi\u1ebft b\u1ecb. C\u1ea5u h\u00ecnh n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ea1ng gia \u0111\u00ecnh c\u01a1 b\u1ea3n v\u00e0 truy\u1ec1n th\u00f4ng c\u1ef1 ly ng\u1eafn.&nbsp;<\/p>\n\n\n\n<p>Tr\u00ean Quora, m\u1ed9t ng\u01b0\u1eddi d\u00f9ng c\u00f3 t\u00ean Nagaraj TM c\u0169ng cho bi\u1ebft c\u00e1p quang 2 l\u00f5i l\u00e0 t\u1ed1t nh\u1ea5t cho c\u00e1c thi\u1ebft l\u1eadp c\u01a1 b\u1ea3n.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXf75LVqkgh5JbBK_s8kDzgZ8Kx0raxkPCcPTsLnoxnAV2yHhhpJcawkuy5tKkoW_k6imxesf7PpluQIyUjX0D5MXXYabSbxt3E8DwVu-FT6T5vw8_3_BNXzplQ-g-iEWY-4Fjjq_g?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"QUORA\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>iii) C\u00e1p quang 4 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>H\u01a1n n\u1eefa, b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn h\u01a1n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1p quang 4 l\u00f5i. Nh\u1eefng lo\u1ea1i c\u00e1p n\u00e0y ph\u00f9 h\u1ee3p nh\u1ea5t v\u1edbi c\u00e1c m\u1ea1ng v\u0103n ph\u00f2ng nh\u1ecf ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 h\u1ec7 th\u1ed1ng camera an ninh y\u00eau c\u1ea7u nhi\u1ec1u \u0111\u01b0\u1eddng d\u1eabn d\u1eef li\u1ec7u. Ch\u00fang cung c\u1ea5p t\u00ednh d\u1ef1 ph\u00f2ng, ngh\u0129a l\u00e0 l\u1ed7i l\u00f5i \u0111\u01b0\u1ee3c sao l\u01b0u b\u1eb1ng c\u00e1c \u0111\u01b0\u1eddng d\u1eabn thay th\u1ebf.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>iv) C\u00e1p quang 6 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>S\u1ee3i quang 6 l\u00f5i cung c\u1ea5p kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng cho c\u00e1c m\u1ea1ng doanh nghi\u1ec7p nh\u1ecf ho\u1eb7c c\u1ea5u h\u00ecnh khu\u00f4n vi\u00ean tr\u01b0\u1eddng h\u1ecdc. N\u00f3 gi\u00fap \u00edch cho c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh c\u1ea7n dung l\u01b0\u1ee3ng cao nh\u01b0ng ch\u01b0a mu\u1ed1n chi ti\u1ec1n cho c\u00e1p l\u00f5i cao.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>v) C\u00e1p quang 8 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>Ngo\u00e0i ra, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u00ednh linh ho\u1ea1t m\u1ea1ng l\u1edbn h\u01a1n v\u1edbi 8 l\u00f5i. \u0110i\u1ec1u n\u00e0y l\u00e0 do \u0111\u00e2y l\u00e0 lo\u1ea1i c\u00e1p th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng vi\u1ec5n th\u00f4ng v\u00e0 doanh nghi\u1ec7p v\u00ec ch\u00fang cho ph\u00e9p x\u1eed l\u00fd l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn h\u01a1n m\u00e0 kh\u00f4ng b\u1ecb m\u1ea5t k\u1ebft n\u1ed1i.&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXe1Eft57sOsn02rqmLuIqOKTLqYMF5XimPAw5aYfyWg6G7axwRdEa92FGApokxAdi9Uj6kF4qO0bPkvL9UXZgg1_UKU1walXxoCjex6nyJjdM1wrtEYPHUjDdVsZ5teH0fKwzYnTw?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"s\u1ee3i \u0111a l\u00f5i\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>vi) C\u00e1p quang 12 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>N\u1ebfu ch\u00fang ta n\u00f3i v\u1ec1 s\u1ee3i quang 12 l\u00f5i th\u00ec h\u00e3y nh\u1edb r\u1eb1ng \u0111\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t \u0111\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u t\u00f2a nh\u00e0 ho\u1eb7c ch\u1ea1y m\u1ea1ng v\u0103n ph\u00f2ng ti\u00ean ti\u1ebfn. Do \u0111\u00f3, n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi c\u00e1c k\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng cho doanh nghi\u1ec7p, b\u1ec7nh vi\u1ec7n v\u00e0 tr\u01b0\u1eddng h\u1ecdc.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>vii) C\u00e1p quang 24 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>C\u00e1p quang 24 l\u00f5i r\u1ea5t quan tr\u1ecdng trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u1ea1ng vi\u1ec5n th\u00f4ng l\u1edbn. C\u00e1p n\u00e0y gi\u1eef nguy\u00ean k\u1ebft n\u1ed1i trong khi v\u1eabn cho ph\u00e9p truy\u1ec1n t\u1ea3i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn. Do \u0111\u00f3, n\u1ebfu b\u1ea1n \u0111ang qu\u1ea3n l\u00fd m\u1ed9t doanh nghi\u1ec7p \u0111ang ph\u00e1t tri\u1ec3n, th\u00ec \u0111\u00e2y l\u00e0 kho\u1ea3n \u0111\u1ea7u t\u01b0 kh\u00f4n ngoan d\u00e0nh cho b\u1ea1n.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/lh7-rt.googleusercontent.com\/docsz\/AD_4nXfxzKJr73cZmO_SfxortMAL-T7_uiNncYZLfyl9FLKaKHk1wgJdzZW-7p6Gvu2HWTv0s13hSbnvGXwGbAwq8J8xKuXIxJHyz621FPwXcOu_czzEiVSVhlyJHe8vopBif4Yd08YWhQ?key=ZGBtoJD9C_QPRrf2wuRYTTu6\" alt=\"s\u1ee3i quang\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>viii) C\u00e1p quang 48 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>C\u00e1p quang 48 l\u00f5i l\u00fd t\u01b0\u1edfng cho c\u00e1c k\u1ebft n\u1ed1i b\u0103ng th\u00f4ng c\u1ef1c cao. \u0110\u00e2y l\u00e0 lo\u1ea1i c\u00e1p \u0111\u01b0\u1ee3c c\u00e1c doanh nghi\u1ec7p l\u1edbn, nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet, c\u00f4ng ty d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y v\u00e0 nh\u00e0 cung c\u1ea5p internet x\u01b0\u01a1ng s\u1ed1ng s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>ix) C\u00e1p quang 96 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>N\u1ebfu ch\u00fang ta ngh\u0129 \u0111\u1ebfn m\u1ea1ng l\u01b0\u1edbi truy\u1ec1n th\u00f4ng qu\u1ed1c t\u1ebf, c\u00e1p quang 96 l\u00f5i c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1p ng\u1ea7m v\u00e0 m\u1ea1ng l\u01b0\u1edbi to\u00e0n th\u00e0nh ph\u1ed1, tr\u00ean to\u00e0n c\u1ea7u, khu v\u1ef1c v\u00e0 th\u1eadm ch\u00ed l\u00e0 qu\u1ed1c gia trong c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet \u0111\u1ec3 cung c\u1ea5p internet nhanh cho m\u1ecdi ng\u01b0\u1eddi.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>x) C\u00e1p quang 144 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>Khi n\u00f3i \u0111\u1ebfn vi\u1ec5n th\u00f4ng \u0111\u01b0\u1eddng d\u00e0i, kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn v\u1edbi truy\u1ec1n d\u1eef li\u1ec7u, 144 l\u00f5i l\u00e0 c\u00e2u tr\u1ea3 l\u1eddi. Nh\u1eefng lo\u1ea1i c\u00e1p n\u00e0y cho ph\u00e9p cung c\u1ea5p d\u1ecbch v\u1ee5 Internet v\u00e0 truy\u1ec1n th\u00f4ng cho h\u00e0ng tri\u1ec7u ng\u01b0\u1eddi th\u00f4ng qua c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng cu\u1ed9n tr\u00ean to\u00e0n qu\u1ed1c.&nbsp;&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><em>xi) C\u00e1p quang 288 l\u00f5i<\/em><\/strong><\/h3>\n\n\n\n<p>Cu\u1ed1i c\u00f9ng, m\u1ed9t s\u1ee3i quang 288 l\u00f5i l\u00e0 th\u1ee9 m\u00e0 m\u1ecdi trung t\u00e2m d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 c\u1ea7n. N\u00f3 x\u1eed l\u00fd l\u01b0\u1ee3ng d\u1eef li\u1ec7u c\u1ef1c l\u1edbn v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u1ea1ng l\u01b0\u1edbi ch\u00ednh ph\u1ee7, nghi\u00ean c\u1ee9u v\u00e0 truy\u1ec1n th\u00f4ng to\u00e0n c\u1ea7u.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><em>B\u1ea3ng t\u00f3m t\u1eaft<\/em><\/strong><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong><em>S\u1ed1 l\u01b0\u1ee3ng l\u00f5i&nbsp;<\/em><\/strong><\/td><td><strong><em>S\u1eed d\u1ee5ng<\/em><\/strong><\/td><\/tr><tr><td><em>L\u00f5i \u0111\u01a1n<\/em><\/td><td><em>Internet t\u1ed1c \u0111\u1ed9 cao, \u1ee9ng d\u1ee5ng y t\u1ebf v\u00e0 qu\u00e2n s\u1ef1, v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p.<\/em><\/td><\/tr><tr><td><em>2-L\u00f5i<\/em><\/td><td><em>K\u1ebft n\u1ed1i \u0111i\u1ec3m-\u0111\u1ebfn-\u0111i\u1ec3m \u0111\u01a1n gi\u1ea3n, m\u1ea1ng gia \u0111\u00ecnh.<\/em><\/td><\/tr><tr><td><em>4 l\u00f5i<\/em><\/td><td><em>M\u1ea1ng v\u0103n ph\u00f2ng nh\u1ecf v\u00e0 h\u1ec7 th\u1ed1ng camera an ninh.<\/em><\/td><\/tr><tr><td><em>6 l\u00f5i<\/em><\/td><td><em>M\u1ea1ng l\u01b0\u1edbi doanh nghi\u1ec7p nh\u1ecf v\u00e0 tr\u01b0\u1eddng h\u1ecdc.<\/em><\/td><\/tr><tr><td><em>8 l\u00f5i<\/em><\/td><td><em>M\u1ea1ng vi\u1ec5n th\u00f4ng, thi\u1ebft l\u1eadp doanh nghi\u1ec7p.<\/em><\/td><\/tr><tr><td><em>12 l\u00f5i<\/em><\/td><td><em>X\u01b0\u01a1ng s\u1ed1ng c\u1ee7a doanh nghi\u1ec7p, b\u1ec7nh vi\u1ec7n, tr\u01b0\u1eddng h\u1ecdc.<\/em><\/td><\/tr><tr><td><em>24-L\u00f5i<\/em><\/td><td><em>Trung t\u00e2m d\u1eef li\u1ec7u, nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 vi\u1ec5n th\u00f4ng, doanh nghi\u1ec7p l\u1edbn.<\/em><\/td><\/tr><tr><td><em>48-L\u00f5i<\/em><\/td><td><em>Internet t\u1ed1c \u0111\u1ed9 cao, \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y, m\u1ea1ng ISP.<\/em><\/td><\/tr><tr><td><em>96-L\u00f5i<\/em><\/td><td><em>Truy\u1ec1n th\u00f4ng to\u00e0n c\u1ea7u, c\u00e1p ng\u1ea7m, m\u1ea1ng l\u01b0\u1edbi l\u1edbn.<\/em><\/td><\/tr><tr><td><em>144-L\u00f5i<\/em><\/td><td><em>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng to\u00e0n qu\u1ed1c, m\u1ea1ng l\u01b0\u1edbi dung l\u01b0\u1ee3ng cao.<\/em><\/td><\/tr><tr><td><em>288-L\u00f5i<\/em><\/td><td><em>C\u00e1c trung t\u00e2m d\u1eef li\u1ec7u l\u1edbn, m\u1ea1ng l\u01b0\u1edbi ch\u00ednh ph\u1ee7 v\u00e0 c\u00e1c vi\u1ec7n nghi\u00ean c\u1ee9u.<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Do \u0111\u00f3, li\u00ean quan \u0111\u1ebfn c\u00e1p quang, vi\u1ec7c l\u1ef1a ch\u1ecdn s\u1ed1 l\u01b0\u1ee3ng l\u00f5i v\u00e0 kho\u1ea3ng c\u00e1ch l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i. Nhi\u1ec1u l\u00f5i h\u01a1n d\u1eabn \u0111\u1ebfn t\u0103ng d\u1eef li\u1ec7u, nh\u01b0ng chi ph\u00ed s\u1ebd cao h\u01a1n theo t\u1ef7 l\u1ec7. H\u01a1n n\u1eefa, b\u1ea1n c\u00f3 th\u1ec3 li\u00ean h\u1ec7 v\u1edbi Dekam Fibers \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c c\u00e1p quang c\u00f3 s\u1ed1 l\u01b0\u1ee3ng l\u00f5i t\u1eeb 2-288. Do \u0111\u00f3, vi\u1ec7c x\u00e1c \u0111\u1ecbnh nhu c\u1ea7u c\u1ee7a b\u1ea1n s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n \u0111\u01b0a ra l\u1ef1a ch\u1ecdn s\u00e1ng su\u1ed1t.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4) L\u1eddi cu\u1ed1i c\u00f9ng<\/strong><\/h2>\n\n\n\n<p>T\u00f3m l\u1ea1i, vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i v\u00e0 s\u1ed1 l\u01b0\u1ee3ng l\u00f5i s\u1ee3i quang l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t m\u1ea1ng v\u00e0 d\u1eef li\u1ec7u t\u1ed1i \u0111a. V\u00ed d\u1ee5; s\u1ed1 l\u01b0\u1ee3ng l\u00f5i dao \u0111\u1ed9ng t\u1eeb 2 \u0111\u1ebfn h\u01a1n 288, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u qu\u1ea3 v\u00e0 dung l\u01b0\u1ee3ng c\u1ee7a d\u1eef li\u1ec7u. Do \u0111\u00f3, n\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t s\u1ee3i quang \u0111\u00e1ng tin c\u1eady th\u00ec kh\u00f4ng c\u1ea7n t\u00ecm \u0111\u00e2u xa n\u1eefa <a href=\"https:\/\/dekam-fiber.com\/vi\/about-dekam\/\" target=\"_blank\" rel=\"noreferrer noopener\">S\u1ee3i Dekam<\/a>. Ch\u00fang t\u00f4i t\u00f9y ch\u1ec9nh c\u00e1c gi\u1ea3i ph\u00e1p c\u00e1p quang \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c c\u00e1p quang t\u00f9y theo nhu c\u1ea7u c\u1ee7a m\u00ecnh. V\u00ec v\u1eady, h\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i ngay h\u00f4m nay v\u00e0 duy tr\u00ec l\u1ee3i th\u1ebf c\u1ee7a b\u1ea1n trong th\u1ebf gi\u1edbi k\u1ef9 thu\u1eadt s\u1ed1.<\/p>","protected":false},"excerpt":{"rendered":"<p>Trong th\u1ebf gi\u1edbi ng\u00e0y nay, c\u00e1p quang th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong h\u1ea7u h\u1ebft m\u1ecdi l\u0129nh v\u1ef1c v\u00ec ch\u00fang gi\u00fap truy\u1ec1n d\u1eef li\u1ec7u nhanh ch\u00f3ng qua kho\u1ea3ng c\u00e1ch xa. Tuy nhi\u00ean, n\u1ebfu kh\u00f4ng c\u00f3 l\u00f5i, c\u00e1p quang s\u1ebd v\u00f4 d\u1ee5ng. L\u00fd do l\u00e0 v\u00ec l\u00f5i v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n \u1ea9n n\u1eb1m \u1edf v\u1ecb tr\u00ed nh\u1eadn t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng. Kh\u00f4ng [\u2026]<\/p>","protected":false},"author":1,"featured_media":17319,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Fiber Optic Cable Core: Understanding its types and uses","_seopress_titles_desc":"","_seopress_robots_index":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-18261","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/posts\/18261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/comments?post=18261"}],"version-history":[{"count":9,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/posts\/18261\/revisions"}],"predecessor-version":[{"id":18925,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/posts\/18261\/revisions\/18925"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/media\/17319"}],"wp:attachment":[{"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/media?parent=18261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/categories?post=18261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dekam-fiber.com\/vi\/wp-json\/wp\/v2\/tags?post=18261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}