{"id":3673,"date":"2025-05-07T03:49:06","date_gmt":"2025-05-07T03:49:06","guid":{"rendered":"https:\/\/commmesh.com\/?p=3673"},"modified":"2025-07-24T06:13:23","modified_gmt":"2025-07-24T06:13:23","slug":"what-is-fiber-optic-cable","status":"publish","type":"post","link":"https:\/\/commmesh.com\/vi\/what-is-fiber-optic-cable\/","title":{"rendered":"C\u00e1p quang l\u00e0 g\u00ec: X\u01b0\u01a1ng s\u1ed1ng c\u1ee7a k\u1ebft n\u1ed1i hi\u1ec7n \u0111\u1ea1i"},"content":{"rendered":"

Trong th\u1eddi \u0111\u1ea1i k\u1ef9 thu\u1eadt s\u1ed1 ng\u00e0y nay, n\u01a1i internet t\u1ed1c \u0111\u1ed9 cao v\u00e0 truy\u1ec1n th\u00f4ng \u0111\u00e1ng tin c\u1eady l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft, c\u00e1p quang<\/a><\/em> \u0111\u00e3 tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng c\u1ee7a k\u1ebft n\u1ed1i. c\u00e1p quang<\/em> l\u00e0 m\u1ed9t lo\u1ea1i c\u00e1p chuy\u00ean d\u1ee5ng s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u v\u1edbi t\u1ed1c \u0111\u1ed9 \u0111\u00e1ng kinh ng\u1ea1c tr\u00ean kho\u1ea3ng c\u00e1ch xa, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>. T\u1eeb vi\u1ec7c cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho m\u1ea1ng l\u01b0\u1edbi internet to\u00e0n c\u1ea7u \u0111\u1ebfn vi\u1ec7c cho ph\u00e9p ph\u00e1t tr\u1ef1c tuy\u1ebfn video \u0111\u1ed9 n\u00e9t cao t\u1ea1i nh\u00e0, c\u00e1p quang<\/em> are revolutionizing how we connect and communicate. This beginner-friendly guide will answer the question, “What is a c\u00e1p quang<\/em>?” by exploring its definition, construction, functionality, benefits, challenges, applications, and future trends. Whether you\u2019re a curious learner, a student, or a professional looking to understand c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, b\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p m\u1ed9t c\u00e1i nh\u00ecn t\u1ed5ng quan r\u00f5 r\u00e0ng v\u00e0 to\u00e0n di\u1ec7n v\u1ec1 c\u00e1p quang<\/em> v\u00e0 vai tr\u00f2 c\u1ee7a ch\u00fang trong vi\u1ec7c \u0111\u1ecbnh h\u00ecnh th\u1ebf gi\u1edbi k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang ta.<\/p>\n\n\n\n\n\n

C\u00e1p quang l\u00e0 g\u00ec?<\/h2>\n\n\n\n

\u0110\u1ecbnh ngh\u0129a c\u00e1p quang<\/h3>\n\n\n\n

M\u1ed8T c\u00e1p quang<\/em> l\u00e0 m\u1ed9t lo\u1ea1i c\u00e1p ch\u1ee9a m\u1ed9t ho\u1eb7c nhi\u1ec1u s\u1ee3i quang\u2014c\u00e1c s\u1ee3i th\u1ee7y tinh ho\u1eb7c nh\u1ef1a m\u1ecfng\u2014\u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u d\u01b0\u1edbi d\u1ea1ng t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, nh\u1eefng lo\u1ea1i c\u00e1p n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 truy\u1ec1n th\u00f4ng tin qua nh\u1eefng kho\u1ea3ng c\u00e1ch xa v\u1edbi m\u1ee9c m\u1ea5t t\u00edn hi\u1ec7u t\u1ed1i thi\u1ec3u, mang l\u1ea1i t\u1ed1c \u0111\u1ed9 v\u00e0 b\u0103ng th\u00f4ng v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi c\u00e1p \u0111\u1ed3ng truy\u1ec1n th\u1ed1ng. A c\u00e1p quang<\/em> c\u00f3 th\u1ec3 l\u00e0 ch\u1ebf \u0111\u1ed9 \u0111\u01a1n, s\u1eed d\u1ee5ng m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn \u00e1nh s\u00e1ng duy nh\u1ea5t \u0111\u1ec3 truy\u1ec1n \u0111i xa, ho\u1eb7c ch\u1ebf \u0111\u1ed9 \u0111a, s\u1eed d\u1ee5ng nhi\u1ec1u \u0111\u01b0\u1eddng d\u1eabn \u00e1nh s\u00e1ng cho kho\u1ea3ng c\u00e1ch ng\u1eafn h\u01a1n. c\u00e1p quang<\/em> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong vi\u1ec5n th\u00f4ng, d\u1ecbch v\u1ee5 internet v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao kh\u00e1c, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>.<\/p>\n\n\n\n

\"c\u00e1p<\/a>
c\u00e1p quang<\/figcaption><\/figure>\n\n\n\n

C\u00e1p quang \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng g\u00ec?<\/h3>\n\n\n\n

C\u00e1c v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t c\u00e1p quang<\/em> \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn c\u1ea9n th\u1eadn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n \u00e1nh s\u00e1ng hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u1ed9 b\u1ec1n. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, c\u1ed1t l\u00f5i c\u1ee7a m\u1ed9t c\u00e1p quang<\/em> \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb th\u1ee7y tinh si\u00eau tinh khi\u1ebft (silica) ho\u1eb7c \u0111\u00f4i khi l\u00e0 nh\u1ef1a, mang t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng. Bao quanh l\u00f5i l\u00e0 l\u1edbp ph\u1ee7, c\u0169ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u1ee7y tinh c\u00f3 chi\u1ebft su\u1ea5t th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng tr\u1edf l\u1ea1i l\u00f5i th\u00f4ng qua ph\u1ea3n x\u1ea1 to\u00e0n ph\u1ea7n b\u00ean trong. L\u1edbp ph\u1ee7 \u0111\u1ec7m b\u1ea3o v\u1ec7, th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng acrylate ho\u1eb7c c\u00e1c polyme t\u01b0\u01a1ng t\u1ef1, b\u1ea3o v\u1ec7 c\u00e1c s\u1ee3i kh\u1ecfi \u0111\u1ed9 \u1ea9m v\u00e0 \u1ee9ng su\u1ea5t v\u1eadt l\u00fd. C\u00e1c th\u00e0nh ph\u1ea7n c\u01b0\u1eddng \u0111\u1ed9, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1ee3i aramid (v\u00ed d\u1ee5: Kevlar), cung c\u1ea5p \u0111\u1ed9 b\u1ec1n k\u00e9o, trong khi l\u1edbp v\u1ecf ngo\u00e0i\u2014th\u01b0\u1eddng l\u00e0 polyethylene, PVC ho\u1eb7c LSZH<\/a> (\u00cdt kh\u00f3i, kh\u00f4ng halogen)\u2014b\u1ea3o v\u1ec7 c\u00e1p quang<\/em> t\u1eeb c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng nh\u01b0 b\u1ee9c x\u1ea1 UV v\u00e0 m\u00e0i m\u00f2n. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau \u0111\u1ec3 t\u1ea1o ra c\u00e1p quang<\/em> m\u1ea1nh m\u1ebd v\u00e0 hi\u1ec7u qu\u1ea3 trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>.<\/p>\n\n\n\n

C\u00e1p quang \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n\n\n\n

Vi\u1ec7c s\u1ea3n xu\u1ea5t m\u1ed9t c\u00e1p quang<\/em> bao g\u1ed3m m\u1ed9t quy tr\u00ecnh s\u1ea3n xu\u1ea5t tinh vi \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 hi\u1ec7u su\u1ea5t cao. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, qu\u00e1 tr\u00ecnh b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c t\u1ea1o ra c\u00e1c s\u1ee3i quang th\u00f4ng qua m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p g\u1ecdi l\u00e0 l\u1eafng \u0111\u1ecdng h\u01a1i, trong \u0111\u00f3 silica \u0111\u01b0\u1ee3c tinh ch\u1ebf v\u00e0 n\u1ea5u ch\u1ea3y \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t ph\u00f4i\u2014m\u1ed9t thanh th\u1ee7y tinh h\u00ecnh tr\u1ee5. Sau \u0111\u00f3, ph\u00f4i n\u00e0y \u0111\u01b0\u1ee3c k\u00e9o th\u00e0nh c\u00e1c s\u1ee3i m\u1ecfng \u1edf nhi\u1ec7t \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 2000\u00b0C, \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf t\u1edbi 125 micron. C\u00e1c s\u1ee3i \u0111\u01b0\u1ee3c ph\u1ee7 m\u1ed9t l\u1edbp \u0111\u1ec7m g\u1ea7n nh\u01b0 ngay l\u1eadp t\u1ee9c \u0111\u1ec3 ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng. Ti\u1ebfp theo, nhi\u1ec1u s\u1ee3i \u0111\u01b0\u1ee3c b\u00f3 l\u1ea1i, gia c\u1ed1 b\u1eb1ng s\u1ee3i aramid v\u00e0 b\u1ecdc trong l\u1edbp v\u1ecf b\u1ea3o v\u1ec7 b\u1eb1ng c\u00e1c k\u1ef9 thu\u1eadt \u0111\u00f9n. M\u1ed7i c\u00e1p quang<\/em> tr\u1ea3i qua qu\u00e1 tr\u00ecnh ki\u1ec3m tra nghi\u00eam ng\u1eb7t v\u1ec1 \u0111\u1ed9 m\u1ea5t t\u00edn hi\u1ec7u v\u00e0 \u0111\u1ed9 b\u1ec1n tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em> \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

C\u00e1p quang ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o trong c\u00f4ng ngh\u1ec7 c\u00e1p quang<\/h3>\n\n\n\n

TRONG c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, M\u1ed9t c\u00e1p quang<\/em> truy\u1ec1n d\u1eef li\u1ec7u b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n th\u00e0nh xung \u00e1nh s\u00e1ng. Qu\u00e1 tr\u00ecnh b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t m\u00e1y ph\u00e1t, ch\u1eb3ng h\u1ea1n nh\u01b0 laser ho\u1eb7c LED, t\u1ea1o ra t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng d\u1ef1a tr\u00ean d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c g\u1eedi. C\u00e1c xung \u00e1nh s\u00e1ng n\u00e0y truy\u1ec1n qua c\u00e1c s\u1ee3i quang b\u00ean trong c\u00e1p quang<\/em>, ph\u1ea3n x\u1ea1 kh\u1ecfi l\u1edbp v\u1ecf \u0111\u1ec3 \u1edf l\u1ea1i b\u00ean trong l\u00f5i, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea3n x\u1ea1 to\u00e0n ph\u1ea7n b\u00ean trong. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p c\u00e1p quang<\/em> \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u qua kho\u1ea3ng c\u00e1ch xa v\u1edbi t\u1ed5n th\u1ea5t t\u1ed1i thi\u1ec3u. \u1ede \u0111\u1ea7u nh\u1eadn, m\u1ed9t b\u1ed9 d\u00f2 quang chuy\u1ec3n \u0111\u1ed5i \u00e1nh s\u00e1ng tr\u1edf l\u1ea1i th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u1ec3 x\u1eed l\u00fd. Ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7u qu\u1ea3 n\u00e0y l\u00e0m cho c\u00e1p quang<\/em> l\u00fd t\u01b0\u1edfng cho giao ti\u1ebfp t\u1ed1c \u0111\u1ed9 cao, \u0111\u01b0\u1eddng d\u00e0i trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>.<\/p>\n\n\n\n

\"c\u00e1p<\/a>
c\u00e1p quang<\/figcaption><\/figure>\n\n\n\n

L\u1ee3i \u00edch c\u1ee7a c\u00e1p quang<\/h2>\n\n\n\n

T\u1ed1c \u0111\u1ed9 cao v\u00e0 b\u0103ng th\u00f4ng<\/h3>\n\n\n\n

M\u1ed9t trong nh\u1eefng l\u1ee3i th\u1ebf quan tr\u1ecdng nh\u1ea5t c\u1ee7a m\u1ed9t c\u00e1p quang<\/em> l\u00e0 kh\u1ea3 n\u0103ng cung c\u1ea5p t\u1ed1c \u0111\u1ed9 cao v\u00e0 b\u0103ng th\u00f4ng r\u1ed9ng l\u1edbn. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, c\u00e1p quang<\/em> c\u00f3 th\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u \u1edf t\u1ed1c \u0111\u1ed9 v\u01b0\u1ee3t qu\u00e1 100 Gbps, v\u01b0\u1ee3t xa c\u00e1p \u0111\u1ed3ng truy\u1ec1n th\u1ed1ng. B\u0103ng th\u00f4ng cao n\u00e0y h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 ph\u00e1t tr\u1ef1c tuy\u1ebfn video 4K, \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn m\u00e0 kh\u00f4ng b\u1ecb t\u1eafc ngh\u1ebdn. c\u00e1p quang<\/em> c\u00f3 th\u1ec3 x\u1eed l\u00fd nhi\u1ec1u lu\u1ed3ng d\u1eef li\u1ec7u c\u00f9ng l\u00fac, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho nhu c\u1ea7u internet hi\u1ec7n \u0111\u1ea1i, n\u01a1i ng\u01b0\u1eddi d\u00f9ng mong \u0111\u1ee3i k\u1ebft n\u1ed1i nhanh ch\u00f3ng v\u00e0 \u0111\u00e1ng tin c\u1eady. Kh\u1ea3 n\u0103ng n\u00e0y \u0111\u1ecbnh v\u1ecb c\u00e1p quang<\/em> l\u00e0 s\u1ef1 l\u1ef1a ch\u1ecdn \u01b0u ti\u00ean cho c\u00e1c m\u1ea1ng hi\u1ec7u su\u1ea5t cao trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>.<\/p>\n\n\n\n

Truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i v\u1edbi t\u1ed5n th\u1ea5t t\u1ed1i thi\u1ec3u<\/h3>\n\n\n\n

M\u1ed8T c\u00e1p quang<\/em> v\u01b0\u1ee3t tr\u1ed9i trong truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i, duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a t\u00edn hi\u1ec7u tr\u00ean kho\u1ea3ng c\u00e1ch xa. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, c\u00e1p quang<\/em> tr\u1ea3i nghi\u1ec7m suy gi\u1ea3m t\u00edn hi\u1ec7u \u00edt h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi c\u00e1p \u0111\u1ed3ng, cho ph\u00e9p d\u1eef li\u1ec7u truy\u1ec1n \u0111i t\u1edbi 100 km m\u00e0 kh\u00f4ng c\u1ea7n b\u1ed9 l\u1eb7p t\u00edn hi\u1ec7u trong c\u1ea5u h\u00ecnh ch\u1ebf \u0111\u1ed9 \u0111\u01a1n. \u0110i\u1ec1u n\u00e0y l\u00e0m cho c\u00e1p quang<\/em> ho\u00e0n h\u1ea3o cho c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 truy\u1ec1n th\u00f4ng xuy\u00ean \u0111\u1ea1i d\u01b0\u01a1ng, n\u01a1i d\u1eef li\u1ec7u ph\u1ea3i di chuy\u1ec3n h\u00e0ng ng\u00e0n d\u1eb7m m\u00e0 kh\u00f4ng b\u1ecb suy gi\u1ea3m. Kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u qua kho\u1ea3ng c\u00e1ch xa v\u1edbi t\u1ed5n th\u1ea5t t\u1ed1i thi\u1ec3u \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1p quang<\/em> cung c\u1ea5p c\u00e1c k\u1ebft n\u1ed1i \u0111\u00e1ng tin c\u1eady, ch\u1ea5t l\u01b0\u1ee3ng cao trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>.<\/p>\n\n\n\n

Mi\u1ec5n nhi\u1ec5m v\u1edbi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb<\/h3>\n\n\n\n

Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1p \u0111\u1ed3ng, m\u1ed9t c\u00e1p quang<\/em> kh\u00f4ng b\u1ecb nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI), khi\u1ebfn n\u00f3 c\u00f3 \u0111\u1ed9 tin c\u1eady cao trong m\u00f4i tr\u01b0\u1eddng \u0111\u1ea7y th\u00e1ch th\u1ee9c. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, c\u00e1p quang<\/em> truy\u1ec1n d\u1eef li\u1ec7u b\u1eb1ng \u00e1nh s\u00e1ng thay v\u00ec \u0111i\u1ec7n, do \u0111\u00f3 ch\u00fang kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u \u0111i\u1ec7n, t\u1ea7n s\u1ed1 v\u00f4 tuy\u1ebfn ho\u1eb7c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n g\u1ea7n \u0111\u00f3. Kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m v\u1edbi EMI n\u00e0y \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t nh\u1ea5t qu\u00e1n trong c\u00e1c c\u00e0i \u0111\u1eb7t nh\u01b0 c\u01a1 s\u1edf c\u00f4ng nghi\u1ec7p, khu v\u1ef1c \u0111\u00f4 th\u1ecb c\u00f3 ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec7n m\u1ea1nh ho\u1eb7c g\u1ea7n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111i\u1ec7n \u00e1p cao. c\u00e1p quang<\/em>kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u c\u1ee7a n\u00f3 l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em> \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

\"c\u00e1p<\/a>
c\u00e1p quang ngo\u00e0i tr\u1eddi<\/figcaption><\/figure>\n\n\n\n

Nh\u1eefng th\u00e1ch th\u1ee9c c\u1ee7a c\u00e1p quang<\/h2>\n\n\n\n

Chi ph\u00ed l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec cao<\/h3>\n\n\n\n

Trong khi m\u1ed9t c\u00e1p quang<\/em> mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch, vi\u1ec7c l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec c\u00f3 th\u1ec3 t\u1ed1n k\u00e9m. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, tri\u1ec3n khai c\u00e1p quang<\/em> th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y gh\u00e9p quang v\u00e0 c\u00e1c c\u00f4ng c\u1ee5 th\u1eed nghi\u1ec7m, c\u0169ng nh\u01b0 c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean l\u00e0nh ngh\u1ec1 \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c s\u1ee3i m\u1ecfng manh. \u0110\u00e0o r\u00e3nh ng\u1ea7m c\u00e1p quang<\/em> ho\u1eb7c l\u1eafp \u0111\u1eb7t c\u00e1c thi\u1ebft b\u1ecb tr\u00ean kh\u00f4ng c\u0169ng c\u00f3 th\u1ec3 l\u00e0m t\u0103ng th\u00eam chi ph\u00ed, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u1edf nh\u1eefng v\u00f9ng n\u00f4ng th\u00f4n ho\u1eb7c kh\u00f3 ti\u1ebfp c\u1eadn. Ngo\u00e0i ra, vi\u1ec7c s\u1eeda ch\u1eefa m\u1ed9t thi\u1ebft b\u1ecb b\u1ecb h\u1ecfng c\u00e1p quang<\/em> \u0111\u00f2i h\u1ecfi s\u1ef1 ch\u00ednh x\u00e1c v\u00e0 chuy\u00ean m\u00f4n, l\u00e0m t\u0103ng chi ph\u00ed b\u1ea3o tr\u00ec. Nh\u1eefng th\u00e1ch th\u1ee9c t\u00e0i ch\u00ednh n\u00e0y c\u00f3 th\u1ec3 l\u00e0m c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em> m\u1ed9t kho\u1ea3n \u0111\u1ea7u t\u01b0 \u0111\u00e1ng k\u1ec3, m\u1eb7c d\u00f9 l\u1ee3i \u00edch l\u00e2u d\u00e0i c\u1ee7a n\u00f3 th\u01b0\u1eddng bi\u1ec7n minh cho chi ph\u00ed b\u1ecf ra.<\/p>\n\n\n\n

\u0110\u1ed9 mong manh v\u00e0 kh\u00f3 kh\u0103n khi x\u1eed l\u00fd<\/h3>\n\n\n\n

M\u1ed8T c\u00e1p quang<\/em> d\u1ec5 v\u1ee1 h\u01a1n c\u00e1p \u0111\u1ed3ng, g\u00e2y ra nhi\u1ec1u th\u00e1ch th\u1ee9c trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t v\u00e0 x\u1eed l\u00fd. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, s\u1ee3i th\u1ee7y tinh ho\u1eb7c nh\u1ef1a b\u00ean trong m\u1ed9t c\u00e1p quang<\/em> c\u00f3 th\u1ec3 b\u1ecb g\u00e3y n\u1ebfu u\u1ed1n qu\u00e1 m\u1ea1nh ho\u1eb7c ch\u1ecbu l\u1ef1c qu\u00e1 l\u1edbn, d\u1eabn \u0111\u1ebfn m\u1ea5t t\u00edn hi\u1ec7u ho\u1eb7c h\u1ecfng ho\u00e0n to\u00e0n. Ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c h\u01b0\u1edbng d\u1eabn nghi\u00eam ng\u1eb7t v\u1ec1 b\u00e1n k\u00ednh u\u1ed1n v\u00e0 \u0111\u1ed9 c\u0103ng \u0111\u1ec3 tr\u00e1nh l\u00e0m h\u1ecfng c\u00e1p quang<\/em>. S\u1ef1 mong manh n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 k\u1ebf ho\u1ea1ch v\u00e0 x\u1eed l\u00fd c\u1ea9n th\u1eadn, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t ho\u1eb7c trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai tr\u00ean quy m\u00f4 l\u1edbn, khi\u1ebfn c\u00e1p quang<\/em> \u0111\u00f2i h\u1ecfi nhi\u1ec1u h\u01a1n \u0111\u1ec3 l\u00e0m vi\u1ec7c v\u1edbi c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em> so v\u1edbi c\u00e1c lo\u1ea1i \u0111\u1ed3ng b\u1ec1n h\u01a1n.<\/p>\n\n\n\n

\u0110\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a vi\u1ec7c n\u1ed1i v\u00e0 k\u1ebft th\u00fac<\/h3>\n\n\n\n

N\u1ed1i v\u00e0 k\u1ebft th\u00fac m\u1ed9t c\u00e1p quang<\/em> c\u00f3 th\u1ec3 ph\u1ee9c t\u1ea1p v\u00e0 t\u1ed1n th\u1eddi gian, g\u00e2y ra th\u00e1ch th\u1ee9c trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>. Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1p \u0111\u1ed3ng, c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng c\u1eaft v\u00e0 k\u1ebft n\u1ed1i, c\u00e1p quang<\/em> y\u00eau c\u1ea7u n\u1ed1i ch\u00ednh x\u00e1c \u0111\u1ec3 n\u1ed1i c\u00e1c s\u1ee3i, th\u01b0\u1eddng s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt n\u1ed1i n\u00f3ng ch\u1ea3y ho\u1eb7c n\u1ed1i c\u01a1 h\u1ecdc. K\u1ebft th\u00fac\u2014g\u1eafn c\u00e1c \u0111\u1ea7u n\u1ed1i v\u00e0o c\u00e1p quang<\/em>\u2014c\u0169ng \u0111\u00f2i h\u1ecfi c\u00e1c c\u00f4ng c\u1ee5 chuy\u00ean d\u1ee5ng v\u00e0 chuy\u00ean m\u00f4n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ea5t t\u00edn hi\u1ec7u th\u1ea5p. Sai l\u1ea7m trong n\u1ed1i<\/a> ho\u1eb7c vi\u1ec7c ch\u1ea5m d\u1ee9t c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t, khi\u1ebfn qu\u00e1 tr\u00ecnh n\u00e0y tr\u1edf th\u00e0nh m\u1ed9t r\u00e0o c\u1ea3n quan tr\u1ecdng trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em> tri\u1ec3n khai, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c nh\u00f3m kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o chuy\u00ean s\u00e2u v\u1ec1 x\u1eed l\u00fd c\u00e1p quang<\/em>.<\/p>\n\n\n\n

\u1ee8ng d\u1ee5ng c\u1ee7a c\u00e1p quang<\/h2>\n\n\n\n

D\u1ecbch v\u1ee5 vi\u1ec5n th\u00f4ng v\u00e0 Internet<\/h3>\n\n\n\n

C\u00e1c c\u00e1p quang<\/em> l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a c\u00e1c d\u1ecbch v\u1ee5 vi\u1ec5n th\u00f4ng v\u00e0 internet, cho ph\u00e9p k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, c\u00e1p quang<\/em> h\u00ecnh th\u00e0nh c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng cho c\u00e1c m\u1ea1ng l\u01b0\u1edbi to\u00e0n c\u1ea7u, k\u1ebft n\u1ed1i c\u00e1c ch\u00e2u l\u1ee5c th\u00f4ng qua c\u00e1p ng\u1ea7m v\u00e0 h\u1ed7 tr\u1ee3 c\u00e1c h\u1ec7 th\u1ed1ng b\u0103ng th\u00f4ng r\u1ed9ng qu\u1ed1c gia. C\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet s\u1eed d\u1ee5ng c\u00e1p quang<\/em> \u0111\u1ec3 cung c\u1ea5p internet t\u1ed1c \u0111\u1ed9 gigabit cho c\u00e1c doanh nghi\u1ec7p v\u00e0 h\u1ed9 gia \u0111\u00ecnh, h\u1ed7 tr\u1ee3 c\u00e1c \u1ee9ng d\u1ee5ng nh\u01b0 h\u1ed9i ngh\u1ecb truy\u1ec1n h\u00ecnh, ch\u01a1i game tr\u1ef1c tuy\u1ebfn v\u00e0 ph\u00e1t tr\u1ef1c tuy\u1ebfn. c\u00e1p quang<\/em>Kh\u1ea3 n\u0103ng x\u1eed l\u00fd kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn \u0111\u1ea3m b\u1ea3o truy\u1ec1n th\u00f4ng \u0111\u00e1ng tin c\u1eady, t\u1ed1c \u0111\u1ed9 cao, khi\u1ebfn n\u00f3 tr\u1edf n\u00ean kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em> cho vi\u1ec5n th\u00f4ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n

H\u1ec7 th\u1ed1ng Y t\u1ebf v\u00e0 H\u00ecnh \u1ea3nh<\/h3>\n\n\n\n

Trong l\u0129nh v\u1ef1c y t\u1ebf, m\u1ed9t c\u00e1p quang<\/em> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c h\u1ec7 th\u1ed1ng h\u00ecnh \u1ea3nh v\u00e0 c\u00e1c th\u1ee7 thu\u1eadt x\u00e2m l\u1ea5n t\u1ed1i thi\u1ec3u. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, c\u00e1p quang<\/em> l\u00e0 m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a n\u1ed9i soi v\u00e0 c\u00e1c thi\u1ebft b\u1ecb h\u00ecnh \u1ea3nh kh\u00e1c, truy\u1ec1n \u00e1nh s\u00e1ng v\u00e0 h\u00ecnh \u1ea3nh t\u1eeb b\u00ean trong c\u01a1 th\u1ec3 \u0111\u1ebfn m\u00e0n h\u00ecnh b\u00ean ngo\u00e0i v\u1edbi \u0111\u1ed9 r\u00f5 n\u00e9t cao. \u0110\u01b0\u1eddng k\u00ednh nh\u1ecf v\u00e0 t\u00ednh linh ho\u1ea1t c\u1ee7a c\u00e1p quang<\/em> l\u00e0m cho n\u00f3 tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng \u0111\u1ec3 \u0111i\u1ec1u h\u01b0\u1edbng c\u00e1c khu v\u1ef1c nh\u1ea1y c\u1ea3m trong qu\u00e1 tr\u00ecnh ph\u1eabu thu\u1eadt, trong khi kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m v\u1edbi EMI c\u1ee7a n\u00f3 \u0111\u1ea3m b\u1ea3o truy\u1ec1n d\u1eef li\u1ec7u ch\u00ednh x\u00e1c trong m\u00f4i tr\u01b0\u1eddng c\u00f3 thi\u1ebft b\u1ecb y t\u1ebf. \u1ee8ng d\u1ee5ng n\u00e0y l\u00e0m n\u1ed5i b\u1eadt t\u00ednh linh ho\u1ea1t c\u1ee7a c\u00e1p quang<\/em> trong vi\u1ec7c th\u00fac \u0111\u1ea9y y t\u1ebf c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>.<\/p>\n\n\n\n

Truy\u1ec1n th\u00f4ng qu\u00e2n s\u1ef1 v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5<\/h3>\n\n\n\n

C\u00e1c c\u00e1p quang<\/em> r\u1ea5t quan tr\u1ecdng trong li\u00ean l\u1ea1c qu\u00e2n s\u1ef1 v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, n\u01a1i truy\u1ec1n d\u1eef li\u1ec7u an to\u00e0n v\u00e0 \u0111\u00e1ng tin c\u1eady l\u00e0 t\u1ed1i quan tr\u1ecdng. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, c\u00e1p quang<\/em> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ea1ng qu\u00e2n s\u1ef1 \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a, v\u00ec ch\u00fang kh\u00f3 b\u1ecb khai th\u00e1c m\u00e0 kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n, t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt. Trong h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, c\u00e1p quang<\/em> k\u1ebft n\u1ed1i c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n t\u1eed h\u00e0ng kh\u00f4ng, cung c\u1ea5p kh\u1ea3 n\u0103ng li\u00ean l\u1ea1c t\u1ed1c \u0111\u1ed9 cao \u0111\u1ec3 \u0111i\u1ec1u h\u01b0\u1edbng v\u00e0 ki\u1ec3m so\u00e1t trong khi v\u1eabn nh\u1eb9 v\u00e0 ch\u1ed1ng l\u1ea1i EMI. \u0110\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1p quang<\/em> trong \u0111i\u1ec1u ki\u1ec7n kh\u1eafc nghi\u1ec7t l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t gi\u1ea3i ph\u00e1p \u0111\u00e1ng tin c\u1eady trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em> d\u00f9ng cho c\u00e1c \u1ee9ng d\u1ee5ng qu\u1ed1c ph\u00f2ng v\u00e0 h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5.<\/p>\n\n\n\n

B\u1ea3ng so s\u00e1nh: C\u00e1p quang so v\u1edbi c\u00e1p \u0111\u1ed3ng<\/h2>\n\n\n\n
\"Internet<\/a>
Internet c\u00e1p quang so v\u1edbi c\u00e1p quang<\/figcaption><\/figure>\n\n\n\n

\u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 nh\u1eefng l\u1ee3i th\u1ebf c\u1ee7a m\u1ed9t c\u00e1p quang<\/em>, sau \u0111\u00e2y l\u00e0 so s\u00e1nh v\u1edbi c\u00e1p \u0111\u1ed3ng truy\u1ec1n th\u1ed1ng:<\/p>\n\n\n\n

Di\u1ec7n m\u1ea1o<\/th>C\u00e1p quang<\/th>C\u00e1p \u0110\u1ed3ng<\/th><\/tr><\/thead>
T\u1ed1c \u0111\u1ed9 v\u00e0 B\u0103ng th\u00f4ng<\/td>Cao, h\u1ed7 tr\u1ee3 100+ Gbps<\/td>Th\u1ea5p h\u01a1n, th\u01b0\u1eddng l\u00ean t\u1edbi 10 Gbps<\/td><\/tr>
Kho\u1ea3ng c\u00e1ch<\/td>L\u00ean \u0111\u1ebfn 100 km v\u1edbi t\u1ed5n th\u1ea5t t\u1ed1i thi\u1ec3u<\/td>Gi\u1edbi h\u1ea1n \u1edf 100 m\u00e9t<\/td><\/tr>
S\u1ef1 can thi\u1ec7p<\/td>Mi\u1ec5n nhi\u1ec5m v\u1edbi EMI<\/td>D\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi EMI<\/td><\/tr>
Chi ph\u00ed l\u1eafp \u0111\u1eb7t<\/td>Thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng cao h\u01a1n<\/td>C\u00e0i \u0111\u1eb7t th\u1ea5p h\u01a1n, \u0111\u01a1n gi\u1ea3n h\u01a1n<\/td><\/tr>
\u0110\u1ed9 b\u1ec1n<\/td>D\u1ec5 v\u1ee1, c\u1ea7n x\u1eed l\u00fd c\u1ea9n th\u1eadn<\/td>M\u1ea1nh m\u1ebd h\u01a1n, d\u1ec5 x\u1eed l\u00fd h\u01a1n<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

B\u1ea3ng n\u00e0y nh\u1ea5n m\u1ea1nh l\u00fd do t\u1ea1i sao c\u00e1p quang<\/em> \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng cho c\u00e1c \u1ee9ng d\u1ee5ng t\u1ed1c \u0111\u1ed9 cao, \u0111\u01b0\u1eddng d\u00e0i trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, m\u1eb7c d\u00f9 chi ph\u00ed cao h\u01a1n v\u00e0 d\u1ec5 v\u1ee1 h\u01a1n so v\u1edbi c\u00e1p \u0111\u1ed3ng<\/a>.<\/p>\n\n\n\n

K\u1ebft lu\u1eadn: C\u00e1p quang l\u00e0 t\u01b0\u01a1ng lai c\u1ee7a k\u1ebft n\u1ed1i<\/h2>\n\n\n\n

C\u00e1c c\u00e1p quang<\/em> l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 mang t\u00ednh chuy\u1ec3n \u0111\u1ed5i, \u0111\u1ecbnh ngh\u0129a l\u1ea1i c\u00e1ch ch\u00fang ta truy\u1ec1n d\u1eef li\u1ec7u trong th\u1ebf gi\u1edbi hi\u1ec7n \u0111\u1ea1i. Trong c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, c\u00e1c c\u00e1p quang<\/em>Kh\u1ea3 n\u0103ng cung c\u1ea5p t\u1ed1c \u0111\u1ed9 cao, truy\u1ec1n d\u1eabn \u0111\u01b0\u1eddng d\u00e0i v\u00e0 kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m v\u1edbi nhi\u1ec5u khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n v\u00e0ng cho vi\u1ec5n th\u00f4ng, h\u00ecnh \u1ea3nh y t\u1ebf, truy\u1ec1n th\u00f4ng qu\u00e2n s\u1ef1 v\u00e0 h\u01a1n th\u1ebf n\u1eefa. M\u1eb7c d\u00f9 c\u00f3 nh\u1eefng th\u00e1ch th\u1ee9c nh\u01b0 chi ph\u00ed cao, d\u1ec5 v\u1ee1 v\u00e0 l\u1eafp \u0111\u1eb7t ph\u1ee9c t\u1ea1p, nh\u01b0ng l\u1ee3i \u00edch c\u1ee7a c\u00e1p quang<\/em>\u2014k\u1ebft h\u1ee3p v\u1edbi nh\u1eefng ti\u1ebfn b\u1ed9 li\u00ean t\u1ee5c v\u1ec1 v\u1eadt li\u1ec7u v\u00e0 s\u1ef1 t\u00edch h\u1ee3p c\u1ee7a ch\u00fang v\u1edbi 5G v\u00e0 IoT\u2014\u0111\u1ea3m b\u1ea3o s\u1ef1 th\u1ed1ng tr\u1ecb li\u00ean t\u1ee5c c\u1ee7a ch\u00fang trong k\u1ebft n\u1ed1i. Khi nhu c\u1ea7u to\u00e0n c\u1ea7u v\u1ec1 m\u1ea1ng nhanh h\u01a1n, \u0111\u00e1ng tin c\u1eady h\u01a1n t\u0103ng l\u00ean, c\u00e1p quang<\/em> s\u1ebd v\u1eabn l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a c\u00f4ng ngh\u1ec7 s\u1ee3i quang<\/em>, th\u00fac \u0111\u1ea9y t\u01b0\u01a1ng lai s\u1ed1 v\u1edbi hi\u1ec7u su\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 v\u00f4 song.<\/p>","protected":false},"excerpt":{"rendered":"

Trong th\u1eddi \u0111\u1ea1i k\u1ef9 thu\u1eadt s\u1ed1 ng\u00e0y nay, khi internet t\u1ed1c \u0111\u1ed9 cao v\u00e0 truy\u1ec1n th\u00f4ng \u0111\u00e1ng tin c\u1eady l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft, c\u00e1p quang \u0111\u00e3 tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng c\u1ee7a k\u1ebft n\u1ed1i. C\u00e1p quang l\u00e0 lo\u1ea1i c\u00e1p chuy\u00ean d\u1ee5ng s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u v\u1edbi t\u1ed1c \u0111\u1ed9 \u0111\u00e1ng kinh ng\u1ea1c tr\u00ean kho\u1ea3ng c\u00e1ch xa, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong c\u00f4ng ngh\u1ec7 c\u00e1p quang. T\u1eeb vi\u1ec7c cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng [\u2026]<\/p>","protected":false},"author":1,"featured_media":3676,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"34","_seopress_titles_title":"What Is Fiber Optic Cable: The Backbone of Modern Connectivity","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[34],"tags":[],"class_list":["post-3673","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/posts\/3673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/comments?post=3673"}],"version-history":[{"count":8,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/posts\/3673\/revisions"}],"predecessor-version":[{"id":4011,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/posts\/3673\/revisions\/4011"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/media\/3676"}],"wp:attachment":[{"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/media?parent=3673"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/categories?post=3673"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/commmesh.com\/vi\/wp-json\/wp\/v2\/tags?post=3673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}