{"id":5893,"date":"2025-06-30T00:00:00","date_gmt":"2025-06-30T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/fiber-optic-wavelength-bands\/"},"modified":"2026-06-22T09:23:40","modified_gmt":"2026-06-22T09:23:40","slug":"fiber-optic-wavelength-bands","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/fiber-optic-wavelength-bands","title":{"rendered":"T\u00ecm Hi\u1ec3u C\u00e1c D\u1ea3i B\u01b0\u1edbc S\u00f3ng Trong Truy\u1ec1n Th\u00f4ng Quang S\u1ee3i"},"content":{"rendered":"

\ud83d\udccc B\u00e0i vi\u1ebft n\u00e0y \u0111\u01b0\u1ee3c xem x\u00e9t v\u00e0 c\u1eadp nh\u1eadt b\u1edfi c\u00e1c k\u1ef9 s\u01b0 LINK-PP c\u00f3 kinh nghi\u1ec7m phong ph\u00fa trong ng\u00e0nh. \u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 \u0111\u1ed9i ng\u0169 v\u00e0 c\u00e1c \u0111\u00f3ng g\u00f3p k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang t\u00f4i, h\u00e3y truy c\u1eadp Gi\u1edbi thi\u1ec7u v\u1ec1 LINK-PP<\/a>.<\/p>\n\n\n\n

Gi\u1edbi thi\u1ec7u\uff1a<\/h2>\n\n\n\n

Truy\u1ec1n th\u00f4ng s\u1ee3i quang \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a c\u00e1ch th\u1ee9c ch\u00fang ta truy\u1ec1n t\u1ea3i th\u00f4ng tin tr\u00ean to\u00e0n c\u1ea7u. Kh\u00e1c v\u1edbi c\u00e1p \u0111\u1ed3ng truy\u1ec1n th\u1ed1ng d\u1ef1a v\u00e0o t\u00edn hi\u1ec7u \u0111i\u1ec7n, s\u1ee3i quang s\u1eed d\u1ee5ng xung \u00e1nh s\u00e1ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u, mang l\u1ea1i t\u1ed1c \u0111\u1ed9, b\u0103ng th\u00f4ng v\u00e0 kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m v\u1edbi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb ch\u01b0a t\u1eebng c\u00f3. Trung t\u00e2m c\u1ee7a c\u00f4ng ngh\u1ec7 n\u00e0y l\u00e0 kh\u00e1i ni\u1ec7m , trong \u0111\u00f3:<\/strong><\/a>, cho ph\u00e9p nhi\u1ec1u t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng, m\u1ed7i t\u00edn hi\u1ec7u \u1edf m\u1ed9t b\u01b0\u1edbc s\u00f3ng (ho\u1eb7c m\u00e0u) kh\u00e1c nhau, truy\u1ec1n \u0111\u1ed3ng th\u1eddi qua m\u1ed9t s\u1ee3i quang duy nh\u1ea5t. Vi\u1ec7c s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 dung l\u01b0\u1ee3ng c\u1ee7a s\u1ee3i quang n\u00e0y tr\u1edf n\u00ean kh\u1ea3 thi nh\u1edd vi\u1ec7c chu\u1ea9n h\u00f3a c\u1ea9n th\u1eadn c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng.<\/p>\n\n\n\n

Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng \u0111\u00e3 \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 ai tham gia v\u00e0o ng\u00e0nh vi\u1ec5n th\u00f4ng, t\u1eeb nh\u1eefng ng\u01b0\u1eddi thi\u1ebft k\u1ebf m\u1ea1ng \u0111\u1ebfn c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb. B\u00e0i \u0111\u0103ng blog n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau, \u00fd ngh\u0129a k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang, s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c c\u00f4ng ngh\u1ec7 khai th\u00e1c ch\u00fang, c\u0169ng nh\u01b0 c\u00e1ch ch\u00fang \u0111\u1ecbnh h\u00ecnh t\u01b0\u01a1ng lai c\u1ee7a k\u1ebft n\u1ed1i to\u00e0n c\u1ea7u. Ch\u00fang t\u00f4i c\u0169ng s\u1ebd kh\u00e1m ph\u00e1 c\u00e1ch LINK-PP \u2014 nh\u00e0 cung c\u1ea5p h\u00e0ng \u0111\u1ea7u c\u00e1c gi\u1ea3i ph\u00e1p k\u1ebft n\u1ed1i \u2014 \u0111\u00f3ng g\u00f3p v\u00e0o h\u1ec7 sinh th\u00e1i n\u00e0y th\u00f4ng qua lo\u1ea1t m\u00f4-\u0111un quang h\u1ecdc c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n

The Li\u00ean minh Vi\u1ec5n th\u00f4ng Qu\u1ed1c t\u1ebf (ITU)<\/strong> \u0111\u00e3 \u0111\u1ea3m nh\u1eadn vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c chu\u1ea9n h\u00f3a c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong truy\u1ec1n th\u00f4ng s\u1ee3i quang. Vi\u1ec7c chu\u1ea9n h\u00f3a n\u00e0y \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa thi\u1ebft b\u1ecb c\u1ee7a c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau v\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c tri\u1ec3n khai m\u1ea1ng s\u1ee3i quang tr\u00ean to\u00e0n c\u1ea7u. C\u00e1c d\u1ea3i ch\u00ednh, \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo kho\u1ea3ng b\u01b0\u1edbc s\u00f3ng c\u1ee5 th\u1ec3, nh\u01b0 sau:<\/p>\n\n\n\n

\"Fiber<\/figure>\n\n\n\n

C\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng \u0111\u00e3 \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a<\/h2>\n\n\n\n

\u2605 D\u1ea3i O (D\u1ea3i g\u1ed1c): 1260 nm \u0111\u1ebfn 1360 nm<\/strong><\/h3>\n\n\n\n

V\u1ec1 m\u1eb7t l\u1ecbch s\u1eed, \u0111\u00e2y l\u00e0 d\u1ea3i \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong truy\u1ec1n th\u00f4ng quang do s\u1ef1 s\u1eb5n c\u00f3 c\u1ee7a c\u00e1c laser v\u00e0 b\u1ed9 d\u00f2 chi ph\u00ed th\u1ea5p. D\u1ea3i n\u00e0y \u0111\u1eb7c tr\u01b0ng b\u1edfi \u0111\u1ed9 t\u00e1n s\u1eafc s\u1eafc k\u00fd b\u1eb1ng kh\u00f4ng, ngh\u0129a l\u00e0 c\u00e1c b\u01b0\u1edbc s\u00f3ng \u00e1nh s\u00e1ng kh\u00e1c nhau di chuy\u1ec3n v\u1edbi v\u1eadn t\u1ed1c g\u1ea7n nh\u01b0 b\u1eb1ng nhau, gi\u00fap gi\u1ea3m thi\u1ec3u m\u00e9o t\u00edn hi\u1ec7u tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i. Tuy nhi\u00ean, d\u1ea3i n\u00e0y ch\u1ecbu t\u1ed5n hao cao h\u01a1n (m\u1ea5t t\u00edn hi\u1ec7u) so v\u1edbi c\u00e1c b\u01b0\u1edbc s\u00f3ng d\u00e0i h\u01a1n.<\/p>\n\n\n\n

\u2605 D\u1ea3i E (D\u1ea3i m\u1edf r\u1ed9ng): 1360 nm \u0111\u1ebfn 1460 nm<\/strong><\/h3>\n\n\n\n

D\u1ea3i n\u00e0y m\u1edf r\u1ed9ng t\u1eeb d\u1ea3i O v\u00e0 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n nh\u1eb1m t\u0103ng b\u0103ng th\u00f4ng kh\u1ea3 d\u1ee5ng. Tuy nhi\u00ean, d\u1ea3i n\u00e0y ch\u1ecbu \u1ea3nh h\u01b0\u1edfng \u0111\u00e1ng k\u1ec3 b\u1edfi \u0111\u1ec9nh h\u1ea5p th\u1ee5 do n\u01b0\u1edbc t\u1ea1i kho\u1ea3ng 1383 nm, v\u1ed1n t\u1eebng h\u1ea1n ch\u1ebf vi\u1ec7c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i. Nh\u1eefng ti\u1ebfn b\u1ed9 trong quy tr\u00ecnh s\u1ea3n xu\u1ea5t s\u1ee3i quang \u0111\u00e3 l\u00e0m gi\u1ea3m \u0111\u1ec9nh h\u1ea5p th\u1ee5 do n\u01b0\u1edbc n\u00e0y, khi\u1ebfn d\u1ea3i E tr\u1edf n\u00ean kh\u1ea3 thi h\u01a1n cho m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng nh\u1ea5t \u0111\u1ecbnh.<\/p>\n\n\n\n

\u2605 <\/strong>D\u1ea3i S (D\u1ea3i b\u01b0\u1edbc s\u00f3ng ng\u1eafn): 1460 nm \u0111\u1ebfn 1530 nm<\/h3>\n\n\n\n

D\u1ea3i S c\u00f3 t\u1ed5n hao th\u1ea5p h\u01a1n d\u1ea3i O v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ed9t s\u1ed1 m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i v\u00e0 m\u1ea1ng \u0111\u00f4 th\u1ecb. D\u1ea3i n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai song song v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng d\u1ea3i C v\u00e0 d\u1ea3i L nh\u1eb1m m\u1edf r\u1ed9ng t\u1ed5ng dung l\u01b0\u1ee3ng m\u1ea1ng.<\/p>\n\n\n\n

\u2605 <\/strong>D\u1ea3i C (D\u1ea3i th\u00f4ng th\u01b0\u1eddng): 1530 nm \u0111\u1ebfn 1565 nm<\/h3>\n\n\n\n

\u0110\u00e2y c\u00f3 l\u1ebd l\u00e0 d\u1ea3i quan tr\u1ecdng nh\u1ea5t v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t trong truy\u1ec1n th\u00f4ng s\u1ee3i quang hi\u1ec7n \u0111\u1ea1i. D\u1ea3i n\u00e0y mang l\u1ea1i t\u1ed5n hao th\u1ea5p nh\u1ea5t trong s\u1ee3i silica ti\u00eau chu\u1ea9n v\u00e0 l\u00e0 n\u01a1i B\u1ed9 khu\u1ebfch \u0111\u1ea1i s\u1ee3i pha \u00ea-ri (EDFA)<\/strong><\/a> ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 nh\u1ea5t. B\u1ed9 khu\u1ebfch \u0111\u1ea1i s\u1ee3i quang pha t\u1ea1p erbium (EDFA) r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u quang tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i m\u00e0 kh\u00f4ng c\u1ea7n chuy\u1ec3n \u0111\u1ed5i l\u1ea1i th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n, khi\u1ebfn d\u1ea3i C tr\u1edf n\u00ean l\u00fd t\u01b0\u1edfng cho c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng d\u00e0i v\u00e0 c\u00e1p ng\u1ea7m d\u01b0\u1edbi bi\u1ec3n.<\/p>\n\n\n\n

\u2605 <\/strong>D\u1ea3i L (D\u1ea3i b\u01b0\u1edbc s\u00f3ng d\u00e0i): 1565 nm \u0111\u1ebfn 1625 nm<\/h3>\n\n\n\n

D\u1ea3i L m\u1edf r\u1ed9ng c\u1eeda s\u1ed5 t\u1ed5n hao th\u1ea5p ra ngo\u00e0i d\u1ea3i C. D\u1ea3i n\u00e0y c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi EDFA, cho ph\u00e9p m\u1edf r\u1ed9ng th\u00eam dung l\u01b0\u1ee3ng m\u1ea1ng, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c h\u1ec7 th\u1ed1ng gh\u00e9p k\u00eanh ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng m\u1eadt \u0111\u1ed9 cao (DWDM)<\/strong> <\/a>n\u01a1i nhi\u1ec1u k\u00eanh \u0111\u01b0\u1ee3c x\u1ebfp s\u00e1t nhau. D\u1ea3i C v\u00e0 d\u1ea3i L c\u00f9ng nhau t\u1ea1o th\u00e0nh c\u1eeda s\u1ed5 ho\u1ea1t \u0111\u1ed9ng ch\u00ednh cho c\u00e1c m\u1ea1ng quang dung l\u01b0\u1ee3ng cao.<\/p>\n\n\n\n

\u2605 <\/strong>D\u1ea3i U (D\u1ea3i b\u01b0\u1edbc s\u00f3ng si\u00eau d\u00e0i): 1625 nm \u0111\u1ebfn 1675 nm<\/h3>\n\n\n\n

D\u1ea3i n\u00e0y \u00edt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng h\u01a1n nh\u01b0ng ti\u1ec1m n\u0103ng m\u1edf r\u1ed9ng dung l\u01b0\u1ee3ng trong t\u01b0\u01a1ng lai. \u0110\u00e2y v\u1eabn l\u00e0 l\u0129nh v\u1ef1c \u0111ang trong qu\u00e1 tr\u00ecnh nghi\u00ean c\u1ee9u v\u00e0 ph\u00e1t tri\u1ec3n, v\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn khu\u1ebfch \u0111\u1ea1i v\u00e0 kh\u1ea3 n\u0103ng cung c\u1ea5p linh ki\u1ec7n.<\/p>\n\n\n\n

C\u00e1c d\u1ea3i \u0111\u00e3 \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a n\u00e0y cho ph\u00e9p truy\u1ec1n t\u1ea3i hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady l\u01b0\u1ee3ng d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3, t\u1ea1o th\u00e0nh x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a Internet v\u00e0 c\u00e1c m\u1ea1ng truy\u1ec1n th\u00f4ng to\u00e0n c\u1ea7u.<\/p>\n\n\n\n

\"Fiber<\/figure>\n\n\n\n

C\u00e1c c\u00f4ng ngh\u1ec7 ch\u1ee7 ch\u1ed1t v\u00e0 s\u1ef1 ti\u1ebfn h\u00f3a k\u1ef9 thu\u1eadt<\/h2>\n\n\n\n

S\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a truy\u1ec1n th\u00f4ng s\u1ee3i quang g\u1eafn li\u1ec1n ch\u1eb7t ch\u1ebd v\u1edbi nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 linh ki\u1ec7n khai th\u00e1c c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng n\u00e0y:<\/p>\n\n\n\n

\u25c6 Laser v\u00e0 b\u1ed9 d\u00f2:<\/strong> C\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ea7u ti\u00ean ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng LED v\u00e0 \u0111i-\u00f4t laser ho\u1ea1t \u0111\u1ed9ng trong c\u1eeda s\u1ed5 850 nm v\u00e0 1310 nm. Khi nhu c\u1ea7u v\u1ec1 b\u0103ng th\u00f4ng cao h\u01a1n v\u00e0 t\u1ea7m xa l\u1edbn h\u01a1n gia t\u0103ng, c\u00e1c laser ph\u1ea3n h\u1ed3i ph\u00e2n b\u1ed1 (DFB)<\/strong><\/a> and \u0110i\u1ed1t quang th\u00e1c l\u0169 (Avalanche Photodiodes \u2013 APDs)<\/strong><\/a> tinh vi h\u01a1n \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n cho c\u1eeda s\u1ed5 1550 nm, mang l\u1ea1i c\u00f4ng su\u1ea5t v\u00e0 \u0111\u1ed9 nh\u1ea1y cao h\u01a1n.<\/p>\n\n\n\n

\u25c6 B\u1ed9 khu\u1ebfch \u0111\u1ea1i quang:<\/strong> Vi\u1ec7c ph\u00e1t tri\u1ec3n B\u1ed9 khu\u1ebfch \u0111\u1ea1i s\u1ee3i pha \u00ea-ri (EDFA) <\/strong>l\u00e0 b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 mang t\u00ednh c\u00e1ch m\u1ea1ng cho truy\u1ec1n th\u00f4ng \u0111\u01b0\u1eddng d\u00e0i. C\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i s\u1ee3i quang pha t\u1ea1p erbium (EDFA), ho\u1ea1t \u0111\u1ed9ng ch\u1ee7 y\u1ebfu trong d\u1ea3i C v\u00e0 d\u1ea3i L, c\u00f3 th\u1ec3 khu\u1ebfch \u0111\u1ea1i \u0111\u1ed3ng th\u1eddi nhi\u1ec1u t\u00edn hi\u1ec7u quang m\u00e0 kh\u00f4ng c\u1ea7n chuy\u1ec3n \u0111\u1ed5i sang t\u00edn hi\u1ec7u \u0111i\u1ec7n, t\u1eeb \u0111\u00f3 m\u1edf r\u1ed9ng \u0111\u00e1ng k\u1ec3 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn v\u00e0 gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a h\u1ec7 th\u1ed1ng. C\u00e1c lo\u1ea1i b\u1ed9 khu\u1ebfch \u0111\u1ea1i kh\u00e1c, nh\u01b0 b\u1ed9 khu\u1ebfch \u0111\u1ea1i Raman, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u1edf r\u1ed9ng ph\u1ea1m vi v\u00e0 dung l\u01b0\u1ee3ng trong c\u00e1c d\u1ea3i kh\u00e1c.<\/p>\n\n\n\n

\u25c6 Gh\u00e9p k\u00eanh ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng (WDM): <\/strong>C\u00f4ng ngh\u1ec7 WDM cho ph\u00e9p truy\u1ec1n \u0111\u1ed3ng th\u1eddi nhi\u1ec1u t\u00edn hi\u1ec7u quang, m\u1ed7i t\u00edn hi\u1ec7u \u1edf m\u1ed9t b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau, tr\u00ean m\u1ed9t s\u1ee3i quang duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 dung l\u01b0\u1ee3ng c\u1ee7a s\u1ee3i quang. WDM th\u00f4 (CWDM) <\/strong>S\u1eed d\u1ee5ng kho\u1ea3ng c\u00e1ch k\u00eanh r\u1ed9ng h\u01a1n v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c kho\u1ea3ng c\u00e1ch ng\u1eafn h\u01a1n c\u0169ng nh\u01b0 s\u1ed1 l\u01b0\u1ee3ng k\u00eanh \u00edt h\u01a1n, th\u01b0\u1eddng trong d\u1ea3i O v\u00e0 d\u1ea3i E. WDM d\u00e0y \u0111\u1eb7c (DWDM)<\/strong> S\u1eed d\u1ee5ng kho\u1ea3ng c\u00e1ch k\u00eanh h\u1eb9p h\u01a1n nhi\u1ec1u, cho ph\u00e9p truy\u1ec1n h\u00e0ng tr\u0103m k\u00eanh tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i, ch\u1ee7 y\u1ebfu trong d\u1ea3i C v\u00e0 d\u1ea3i L.<\/p>\n\n\n\n

\u25c6 C\u00e1c \u0111\u1ecbnh d\u1ea1ng \u0111i\u1ec1u ch\u1ebf: <\/strong>Ngo\u00e0i vi\u1ec7c \u0111\u01a1n gi\u1ea3n b\u1eadt\/t\u1eaft \u00e1nh s\u00e1ng (On-Off Keying, OOK), c\u00e1c \u0111\u1ecbnh d\u1ea1ng \u0111i\u1ec1u ch\u1ebf n\u00e2ng cao nh\u01b0 \u0110i\u1ec1u ch\u1ebf d\u1ecbch pha vu\u00f4ng (QPSK) <\/strong>and \u0110i\u1ec1u ch\u1ebf bi\u00ean \u0111\u1ed9 vu\u00f4ng pha (QAM) <\/strong>Cho ph\u00e9p m\u00e3 h\u00f3a nhi\u1ec1u bit th\u00f4ng tin h\u01a1n tr\u00ean m\u1ed7i k\u00fd hi\u1ec7u, t\u1eeb \u0111\u00f3 n\u00e2ng cao h\u01a1n n\u1eefa t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u. C\u00e1c s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u ch\u1ebf ph\u1ee9c t\u1ea1p n\u00e0y \u0111\u00f2i h\u1ecfi ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c t\u00edn hi\u1ec7u quang v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi c\u00e1c k\u1ef9 thu\u1eadt ph\u00e1t hi\u1ec7n \u0111\u1ed3ng pha.<\/p>\n\n\n\n

\u25c6 C\u00e1c lo\u1ea1i s\u1ee3i quang: <\/strong>M\u1eb7c d\u00f9 s\u1ee3i quang \u0111\u01a1n mode ti\u00eau chu\u1ea9n (SMF-28)<\/strong> \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, nh\u01b0ng c\u00e1c lo\u1ea1i s\u1ee3i chuy\u00ean d\u1ee5ng nh\u01b0 s\u1ee3i quang d\u1ecbch t\u00e1n s\u1eafc (DSF<\/strong>) v\u00e0 s\u1ee3i quang d\u1ecbch t\u00e1n s\u1eafc kh\u00f4ng b\u1eb1ng kh\u00f4ng (NZDSF<\/strong>) \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n nh\u1eb1m t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u n\u0103ng trong c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t cho c\u00e1c h\u1ec7 th\u1ed1ng DWDM t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n

Nh\u1eefng ti\u1ebfn b\u1ed9 c\u00f4ng ngh\u1ec7 n\u00e0y li\u00ean t\u1ee5c m\u1edf r\u1ed9ng gi\u1edbi h\u1ea1n c\u1ee7a vi\u1ec7c truy\u1ec1n d\u1eabn d\u1eef li\u1ec7u, cho ph\u00e9p \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 nhanh h\u01a1n, dung l\u01b0\u1ee3ng l\u1edbn h\u01a1n tr\u00ean nh\u1eefng kho\u1ea3ng c\u00e1ch ng\u00e0y c\u00e0ng t\u0103ng.<\/p>\n\n\n\n

C\u00e1c module quang LINK-PP: K\u1ebft n\u1ed1i th\u1ebf gi\u1edbi<\/h2>\n\n\n\n
\"LINK-PP<\/figure>\n\n\n\n

LINK-PP, m\u1ed9t th\u01b0\u01a1ng hi\u1ec7u uy t\u00edn trong l\u0129nh v\u1ef1c gi\u1ea3i ph\u00e1p k\u1ebft n\u1ed1i, cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 c\u00e1c lo\u1ea1i b\u1ed9 thu ph\u00e1t quang t\u1ed1c \u0111\u1ed9 cao<\/a> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u \u0111a d\u1ea1ng c\u1ee7a c\u00e1c m\u1ea1ng quang hi\u1ec7n \u0111\u1ea1i. C\u00e1c module n\u00e0y l\u00e0 th\u00e0nh ph\u1ea7n then ch\u1ed1t chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n th\u00e0nh t\u00edn hi\u1ec7u quang v\u00e0 ng\u01b0\u1ee3c l\u1ea1i, gi\u00fap truy\u1ec1n d\u1eef li\u1ec7u li\u1ec1n m\u1ea1ch qua c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau. Cam k\u1ebft c\u1ee7a LINK-PP v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c ti\u00eau chu\u1ea9n ng\u00e0nh \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m mang l\u1ea1i kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i \u0111\u00e1ng tin c\u1eady v\u00e0 hi\u1ec7u n\u0103ng cao.<\/p>\n\n\n\n

\n\n<\/colgroup>

D\u1ea3i b\u01b0\u1edbc s\u00f3ng<\/strong><\/p><\/th>

M\u00f4 h\u00ecnh<\/strong><\/p><\/th>

10km, 20km, 40km<\/strong><\/p><\/th>

\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/p><\/th><\/tr>

D\u1ea3i O (1310\u202fnm)<\/strong><\/p><\/td>

LS-SM3101-40C<\/a> (SFP, 155 Mbps)<\/p><\/td>

40\u202fkm<\/p><\/td>

M\u1ea1ng Fast Ethernet, SDH\/SONET, m\u1ea1ng truy nh\u1eadp, \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p<\/p><\/td><\/tr>

D\u1ea3i C (1550\u202fnm)<\/strong><\/p><\/td>

LS-SM5510-80C <\/a>(SFP+, 10GBASE-ZR)<\/p><\/td>

80\u202fkm<\/p><\/td>

M\u1ea1ng Ethernet \u0111\u01b0\u1eddng d\u00e0i, DWDM \u0111\u00f4 th\u1ecb, x\u01b0\u01a1ng s\u1ed1ng vi\u1ec5n th\u00f4ng<\/p><\/td><\/tr>

D\u1ea3i C (1530 nm CWDM)<\/strong><\/p><\/td>

LS-CW5310-20C<\/a> (SFP+, CWDM)<\/p><\/td>

20\u202fkm<\/p><\/td>

Gi\u1ea3i ph\u00e1p CWDM linh ho\u1ea1t trong m\u1ea1ng \u0111\u00f4 th\u1ecb<\/p><\/td><\/tr>

D\u1ea3i C (1545,32\u202fnm DWDM)<\/strong><\/p><\/td>

LS-DW4010-40I<\/a> (SFP+, DWDM)<\/p><\/td>

40\u202fkm<\/p><\/td>

Li\u00ean k\u1ebft DWDM m\u1eadt \u0111\u1ed9 cao, m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n

B\u1eb1ng c\u00e1ch cung c\u1ea5p \u0111a d\u1ea1ng c\u00e1c module quang tr\u00ean nhi\u1ec1u d\u1ea3i b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau, LINK-PP trao quy\u1ec1n cho c\u00e1c nh\u00e0 khai th\u00e1c m\u1ea1ng v\u00e0 nh\u00e0 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng x\u00e2y d\u1ef1ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quang b\u1ec1n v\u1eefng, m\u1edf r\u1ed9ng quy m\u00f4 v\u00e0 hi\u1ec7u qu\u1ea3 \u2014 c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u d\u1eef li\u1ec7u ng\u00e0y c\u00e0ng gia t\u0103ng.<\/p>\n\n\n\n

Tri\u1ec3n khai v\u00e0 xu h\u01b0\u1edbng ng\u00e0nh<\/h2>\n\n\n\n

Vi\u1ec7c tri\u1ec3n khai c\u00e1c h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng quang \u0111ang kh\u00f4ng ng\u1eebng ph\u00e1t tri\u1ec3n, \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi nhu c\u1ea7u b\u0103ng th\u00f4ng v\u00f4 t\u1eadn. M\u1ed9t s\u1ed1 xu h\u01b0\u1edbng then ch\u1ed1t \u0111ang \u0111\u1ecbnh h\u00ecnh ng\u00e0nh g\u1ed3m:<\/p>\n\n\n\n

\u2605 Tri\u1ec3n khai 5G: <\/strong>Vi\u1ec7c tri\u1ec3n khai to\u00e0n c\u1ea7u m\u1ea1ng 5G l\u00e0 \u0111\u1ed9ng l\u1ef1c l\u1edbn cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng quang. 5G y\u00eau c\u1ea7u m\u1ea1ng l\u01b0\u1edbi d\u00e0y \u0111\u1eb7c c\u00e1c \u00f4 nh\u1ecf (small cell), t\u1ea5t c\u1ea3 \u0111\u1ec1u c\u1ea7n k\u1ebft n\u1ed1i backhaul quang dung l\u01b0\u1ee3ng cao \u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng l\u00f5i. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn nhu c\u1ea7u gia t\u0103ng tri\u1ec3n khai c\u00e1p quang t\u1ea1i khu v\u1ef1c \u0111\u00f4 th\u1ecb v\u00e0 ngo\u1ea1i \u00f4.<\/p>\n\n\n\n

\u2605 K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u (DCI):<\/strong> S\u1ef1 b\u00f9ng n\u1ed5 \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y v\u00e0 c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u quy m\u00f4 si\u00eau l\u1edbn \u0111\u00e3 l\u00e0m gia t\u0103ng m\u1ea1nh l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u gi\u1eefa c\u00e1c c\u01a1 s\u1edf n\u00e0y. C\u00e1c gi\u1ea3i ph\u00e1p DCI ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o c\u00e1c li\u00ean k\u1ebft quang t\u1ed1c \u0111\u1ed9 cao, dung l\u01b0\u1ee3ng l\u1edbn \u2014 th\u01b0\u1eddng s\u1eed d\u1ee5ng DWDM trong d\u1ea3i C v\u00e0 d\u1ea3i L nh\u1eb1m t\u1ed1i \u0111a h\u00f3a th\u00f4ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n

\u2605 Quang t\u1edbi h\u1ed9 gia \u0111\u00ecnh\/doanh nghi\u1ec7p (FTTH\/FTTB): <\/strong>N\u1ed7 l\u1ef1c cung c\u1ea5p t\u1ed1c \u0111\u1ed9 internet nhanh h\u01a1n tr\u1ef1c ti\u1ebfp cho ng\u01b0\u1eddi ti\u00eau d\u00f9ng v\u00e0 doanh nghi\u1ec7p ti\u1ebfp t\u1ee5c th\u00fac \u0111\u1ea9y tri\u1ec3n khai FTTH\/FTTB. \u0110\u00e2y l\u00e0 vi\u1ec7c k\u00e9o c\u00e1p quang tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ecba \u0111i\u1ec3m ng\u01b0\u1eddi d\u00f9ng, cho ph\u00e9p cung c\u1ea5p d\u1ecbch v\u1ee5 internet t\u1ed1c \u0111\u1ed9 gigabit v\u00e0 \u0111a gigabit. C\u00e1c c\u00f4ng ngh\u1ec7 m\u1ea1ng quang th\u1ee5 \u0111\u1ed9ng (PON), nh\u01b0 GPON v\u00e0 XG-PON, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c tri\u1ec3n khai n\u00e0y, th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng trong d\u1ea3i O v\u00e0 d\u1ea3i C.<\/p>\n\n\n\n

\u2605 C\u00e1p quang bi\u1ec3n: <\/strong>Nh\u1eefng s\u1ee3i c\u00e1p quang d\u01b0\u1edbi bi\u1ec3n n\u00e0y t\u1ea1o th\u00e0nh x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a k\u1ebft n\u1ed1i internet to\u00e0n c\u1ea7u, v\u1eadn chuy\u1ec3n ph\u1ea7n l\u1edbn l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u qu\u1ed1c t\u1ebf. Ch\u00fang ch\u1ee7 y\u1ebfu ho\u1ea1t \u0111\u1ed9ng trong d\u1ea3i C v\u00e0 d\u1ea3i L nh\u1edd \u0111\u1eb7c t\u00ednh suy hao c\u1ef1c th\u1ea5p, cho ph\u00e9p truy\u1ec1n d\u1eabn tr\u00ean h\u00e0ng ngh\u00ecn kil\u00f4m\u00e9t.<\/p>\n\n\n\n

\u2605 Quang h\u1ecdc \u0111\u1ed3ng pha:<\/strong> C\u00f4ng ngh\u1ec7 quang h\u1ecdc \u0111\u1ed3ng pha \u2014 s\u1eed d\u1ee5ng \u0111i\u1ec1u ch\u1ebf n\u00e2ng cao v\u00e0 x\u1eed l\u00fd t\u00edn hi\u1ec7u s\u1ed1 \u2014 ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn trong m\u1ea1ng \u0111\u01b0\u1eddng d\u00e0i v\u00e0 m\u1ea1ng \u0111\u00f4 th\u1ecb. N\u00f3 cho ph\u00e9p \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u cao h\u01a1n v\u00e0 hi\u1ec7u su\u1ea5t ph\u1ed5 t\u1ed1t h\u01a1n, khai th\u00e1c t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang hi\u1ec7n c\u00f3.<\/p>\n\n\n\n

\u2605 M\u1ea1ng quang m\u1edf:<\/strong> Xu h\u01b0\u1edbng h\u01b0\u1edbng t\u1edbi c\u00e1c m\u1ea1ng quang m\u1edf v\u00e0 ph\u00e2n t\u00e1ch (disaggregated) cho ph\u00e9p nh\u00e0 khai th\u00e1c m\u1ea1ng l\u1ef1a ch\u1ecdn v\u00e0 k\u1ebft h\u1ee3p linh ki\u1ec7n t\u1eeb nhi\u1ec1u nh\u00e0 cung c\u1ea5p kh\u00e1c nhau, th\u00fac \u0111\u1ea9y \u0111\u1ed5i m\u1edbi v\u00e0 gi\u1ea3m s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t nh\u00e0 cung c\u1ea5p duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c ti\u00eau chu\u1ea9n ng\u00e0nh nh\u1eb1m \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c.<\/p>\n\n\n\n

Nh\u1eefng xu h\u01b0\u1edbng n\u00e0y l\u00e0m n\u1ed5i b\u1eadt vai tr\u00f2 then ch\u1ed1t c\u1ee7a truy\u1ec1n th\u00f4ng quang trong vi\u1ec7c h\u1ed7 tr\u1ee3 qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i s\u1ed1 tr\u00ean m\u1ecdi l\u0129nh v\u1ef1c, \u0111\u1ed3ng th\u1eddi nh\u1ea5n m\u1ea1nh nhu c\u1ea7u li\u00ean t\u1ee5c v\u1ec1 c\u00e1c th\u00e0nh ph\u1ea7n v\u00e0 h\u1ec7 th\u1ed1ng quang ti\u00ean ti\u1ebfn.<\/p>\n\n\n\n

C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/h2>\n\n\n\n

C1: V\u00ec sao trong truy\u1ec1n th\u00f4ng quang l\u1ea1i c\u00f3 nhi\u1ec1u d\u1ea3i b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau?<\/strong><\/p>\n\n\n\n

A1: <\/strong>C\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u d\u1ef1a tr\u00ean c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 suy hao s\u1ee3i quang, t\u00e1n s\u1eafc v\u00e0 kh\u1ea3 n\u0103ng cung c\u1ea5p c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc chi ph\u00ed th\u1ea5p. M\u1ed7i d\u1ea3i c\u00f3 nh\u1eefng \u0111\u1eb7c t\u00ednh ri\u00eang bi\u1ec7t khi\u1ebfn n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3, v\u00ed d\u1ee5 nh\u01b0 truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa (d\u1ea3i C, d\u1ea3i L) ho\u1eb7c c\u00e1c li\u00ean k\u1ebft kho\u1ea3ng c\u00e1ch ng\u1eafn (d\u1ea3i O).<\/p>\n\n\n\n

C\u00e2u h\u1ecfi 2: Wavelength Division Multiplexing (WDM) l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n

A2:<\/strong> WDM l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 cho ph\u00e9p nhi\u1ec1u t\u00edn hi\u1ec7u quang, m\u1ed7i t\u00edn hi\u1ec7u \u1edf m\u1ed9t b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau, \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ed3ng th\u1eddi tr\u00ean m\u1ed9t s\u1ee3i quang duy nh\u1ea5t. \u0110i\u1ec1u n\u00e0y l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 dung l\u01b0\u1ee3ng c\u1ee7a s\u1ee3i quang m\u00e0 kh\u00f4ng c\u1ea7n l\u1eafp \u0111\u1eb7t th\u00eam s\u1ee3i quang v\u1eadt l\u00fd.<\/p>\n\n\n\n

C\u00e2u h\u1ecfi 3: \u00dd ngh\u0129a c\u1ee7a b\u01b0\u1edbc s\u00f3ng 1550 nm l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n

A3:<\/strong> B\u01b0\u1edbc s\u00f3ng 1550 nm (n\u1eb1m trong d\u1ea3i C) c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng v\u00ec s\u1ee3i quang silica ti\u00eau chu\u1ea9n th\u1ec3 hi\u1ec7n m\u1ee9c suy hao th\u1ea5p nh\u1ea5t t\u1ea1i b\u01b0\u1edbc s\u00f3ng n\u00e0y. Ngo\u00e0i ra, b\u1ed9 khu\u1ebfch \u0111\u1ea1i s\u1ee3i pha eri (EDFA) ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 nh\u1ea5t trong d\u1ea3i b\u01b0\u1edbc s\u00f3ng n\u00e0y, do \u0111\u00f3 r\u1ea5t th\u00edch h\u1ee3p cho c\u00e1c m\u1ea1ng quang kho\u1ea3ng c\u00e1ch xa v\u00e0 dung l\u01b0\u1ee3ng cao.<\/p>\n\n\n\n

C\u00e2u h\u1ecfi 4: C\u00e1c b\u1ed9 thu ph\u00e1t quang nh\u01b0 c\u1ee7a LINK-PP t\u00edch h\u1ee3p v\u00e0o h\u1ec7 th\u1ed1ng n\u00e0y nh\u01b0 th\u1ebf n\u00e0o?<\/strong><\/p>\n\n\n\n

Tr\u1ea3 l\u1eddi 4: <\/strong>C\u00e1c b\u1ed9 thu ph\u00e1t quang l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n th\u00e0nh t\u00edn hi\u1ec7u quang \u0111\u1ec3 truy\u1ec1n qua s\u1ee3i quang v\u00e0 chuy\u1ec3n ng\u01b0\u1ee3c l\u1ea1i t\u00edn hi\u1ec7u quang th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u1edf \u0111\u1ea7u nh\u1eadn. C\u00e1c b\u1ed9 thu ph\u00e1t quang c\u1ee7a LINK-PP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng ti\u00eau chu\u1ea9n c\u1ee5 th\u1ec3, \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u trong c\u00e1c m\u1ea1ng quang.<\/p>\n\n\n\n

C\u00e2u h\u1ecfi 5: T\u01b0\u01a1ng lai c\u1ee7a truy\u1ec1n th\u00f4ng quang l\u00e0 g\u00ec?<\/strong><\/p>\n\n\n\n

Tr\u1ea3 l\u1eddi 5: <\/strong>T\u01b0\u01a1ng lai c\u1ee7a truy\u1ec1n th\u00f4ng quang bao g\u1ed3m nh\u1eefng ti\u1ebfn b\u1ed9 li\u00ean t\u1ee5c v\u1ec1 t\u1ed1c \u0111\u1ed9, dung l\u01b0\u1ee3ng v\u00e0 ph\u1ea1m vi truy\u1ec1n d\u1eabn. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m vi\u1ec7c ph\u00e1t tri\u1ec3n c\u00e1c \u0111\u1ecbnh d\u1ea1ng \u0111i\u1ec1u ch\u1ebf m\u1edbi, c\u00e1c h\u1ec7 th\u1ed1ng WDM b\u1eadc cao h\u01a1n v\u00e0 c\u00f3 th\u1ec3 c\u1ea3 vi\u1ec7c khai th\u00e1c c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng m\u1edbi. Nhu c\u1ea7u b\u0103ng th\u00f4ng ng\u00e0y c\u00e0ng t\u0103ng t\u1eeb 5G, \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y v\u00e0 Internet v\u1ea1n v\u1eadt (IoT) s\u1ebd ti\u1ebfp t\u1ee5c th\u00fac \u0111\u1ea9y \u0111\u1ed5i m\u1edbi trong l\u0129nh v\u1ef1c n\u00e0y.<\/p>\n\n\n\n

K\u1ebft lu\u1eadn:<\/h2>\n\n\n\n

C\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng ti\u00eau chu\u1ea9n l\u00e0 nh\u1eefng kh\u1ed1i x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng c\u1ee7a truy\u1ec1n th\u00f4ng quang hi\u1ec7n \u0111\u1ea1i, cho ph\u00e9p truy\u1ec1n t\u1ea3i hi\u1ec7u qu\u1ea3 v\u00e0 \u0111\u00e1ng tin c\u1eady l\u01b0\u1ee3ng d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 l\u00e0m n\u1ec1n t\u1ea3ng cho th\u1ebf gi\u1edbi k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang ta. T\u1eeb nh\u1eefng ng\u00e0y \u0111\u1ea7u s\u1eed d\u1ee5ng d\u1ea3i O \u0111\u1ebfn c\u00e1c d\u1ea3i C v\u00e0 L c\u00f3 dung l\u01b0\u1ee3ng cao ng\u00e0y nay, nh\u1eefng \u0111\u1ed5i m\u1edbi li\u00ean t\u1ee5c trong c\u00f4ng ngh\u1ec7 quang h\u1ecdc \u0111\u00e3 m\u1edf r\u1ed9ng gi\u1edbi h\u1ea1n c\u1ee7a nh\u1eefng \u0111i\u1ec1u kh\u1ea3 thi.<\/p>\n\n\n\n

Khi nhu c\u1ea7u b\u0103ng th\u00f4ng ti\u1ebfp t\u1ee5c t\u0103ng theo c\u1ea5p s\u1ed1 nh\u00e2n, \u0111\u01b0\u1ee3c th\u00fac \u0111\u1ea9y b\u1edfi c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i nh\u01b0 5G, tr\u00ed tu\u1ec7 nh\u00e2n t\u1ea1o (AI) v\u00e0 Internet v\u1ea1n v\u1eadt (IoT), t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c hi\u1ec3u r\u00f5 v\u00e0 khai th\u00e1c hi\u1ec7u qu\u1ea3 c\u00e1c d\u1ea3i b\u01b0\u1edbc s\u00f3ng n\u00e0y s\u1ebd ng\u00e0y c\u00e0ng gia t\u0103ng. C\u00e1c c\u00f4ng ty nh\u01b0 LINK-PP, v\u1edbi cam k\u1ebft s\u1ea3n xu\u1ea5t c\u00e1c module quang ch\u1ea5t l\u01b0\u1ee3ng cao tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c ti\u00eau chu\u1ea9n then ch\u1ed1t n\u00e0y, \u0111\u00f3ng vai tr\u00f2 thi\u1ebft y\u1ebfu trong vi\u1ec7c x\u00e2y d\u1ef1ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng v\u1eefng ch\u1eafc v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cho t\u01b0\u01a1ng lai. Th\u00f4ng qua s\u1ef1 h\u1ee3p t\u00e1c, ch\u00fang ta c\u00f3 th\u1ec3 ti\u1ebfp t\u1ee5c th\u1eafp s\u00e1ng con \u0111\u01b0\u1eddng d\u1eabn t\u1edbi k\u1ebft n\u1ed1i to\u00e0n c\u1ea7u.<\/p>\n\n\n\n

\ud83d\udd53 B\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c xem x\u00e9t v\u00e0 c\u1eadp nh\u1eadt l\u1ea7n cu\u1ed1i v\u00e0o ng\u00e0y 30 th\u00e1ng 6 n\u0103m 2025 \u0111\u1ec3 ph\u1ea3n \u00e1nh nh\u1eefng ti\u1ebfn tri\u1ec3n v\u00e0 ti\u00eau chu\u1ea9n m\u1edbi nh\u1ea5t trong l\u0129nh v\u1ef1c truy\u1ec1n th\u00f4ng quang.<\/p>\n\n\n\n

Xem Th\u00eam<\/h3>\n\n\n\n

\u0110\u1ec3 t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1c c\u00f4ng ngh\u1ec7 truy\u1ec1n th\u00f4ng quang v\u00e0 c\u00e1ch c\u00e1c gi\u1ea3i ph\u00e1p c\u1ee7a LINK-PP t\u00edch h\u1ee3p v\u00e0o c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, h\u00e3y kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean li\u00ean quan sau \u0111\u00e2y:<\/p>\n\n\n\n