Dab tsi yog qhov paub txog kev siv cov tshuab tsis muaj fiber ntau

Dab tsi yog qhov kev paub siv cov tshuab tsis muaj fiber ntau tsawg?

Nrog txoj kev loj hlob ntawm cov ntaub ntawv tsim nyog xws li triple ua si, IPTV cov kev pabcuam tshiab, thiab kev ua haujlwm loj, kev siv txoj kev sib txuas lus ntawm cov kev sib txuas lus tau pom tias muaj kev sib txuam tawg loj heev, thiab qhov nruab nrab txhua xyoo kev loj hlob ntawm pob qes tshaj kev sib txuas network bandwidth tau mus ntxiv tshaj 50%. Yuav kom yoog kom muaj kev sib tw ua kom muaj zog, nws yuav tsum paub tias lub 400G era yuav siv rau xyoo 2017. Lub tshuab foob pob zeb rau kev tsim kho ntawm cov khoom siv fiber ntau tau muaj kev pab ntau tshaj 20 xyoo. Nws yog qhov nyuaj hloov pauv cov tshuab fiber ntau tom qab tso thiab txhim kho cov khoom siv fais fab. Yog li ntawd, xaiv cov fiber ntau ntawm optical xav kom xav txog tag nrho cov kev cai network thaum lub sij hawm nws lub neej ncua. Yog li ntawd, ultra-low-loss optical fiber tau raug nrhiav tom qab los ntawm kev ua lag luam.

Corning yog ib tug thawj coj hauv thaj teb ntawm cov tsis muaj fiber ntau.

Xyoo 1970, Corning Corporation ntawm Teb Chaws Asmeskas tau tsim cov khoom siv hluav taws xob tsawg tsawg los ntawm kev poob ntawm 17dB / km. Nyob rau hauv 1972, Corning txo tus poob ntawm optical fiber rau 7dB / km. Hauv xyoo 1973, lub MCVD tau tsim los ntawm Bell Labs tsim cov khoom siv fiber ntau, thiab poob ntawm cov khoom siv fiber ntau. Nws poob rau 2.5dB / km. Xyoo 2011, nyob rau hauv txoj kev "Faisal Road" Qinghai-Tibet DC interconnection project, Lub Xeev Grid tau siv Corning Optical fiber ntau rau qhov ntev tshaj plaws, qhov tsis zoo uas tsis muaj qhov system optical fiber vim nws ruaj khov, thiab tau txais kev lag luam hauv kev ua lag luam. .

Tuam Tshoj tuam txhab lag luam tsis yog yuav tsum ua kom tsis muaj kev ua lag luam nyob rau hauv cov nqe lus ntawm cov tsis muaj fiber ntau tsawg.

Nyob rau xyoo 2014, YOFC tau qhib ob qhov chaw loj (thaj chaw zoo ntawm 110μm2 thiab 130μm2, feem ntau) thiab qes pob txha uas tsis muaj qhov muag uas muaj tsawg dua li ntawm 0.184dB / km. Hengtong pib siv ultra-low loss of great cheeb tsam G. 654 fiber, G. 657. B3 fiber ntau; FiberHome pib 400G ultra-low-loss optical fiber ntau; ceev ceev fiber ntau kuj tau muaj cov khoom coj los siv.

Raws li tus fiber ntau, qhov kev lag luam muab pov rau optical fibers rau peb hom: qhov muag tsis pom qhov zoo tib yam, qes pob txha tsis zoo, thiab cov tshuab ua kom tsis muaj qhov muag tsis zoo. Ntawm lawv, cov khoom siv fiber ntau optical fiber ntau dua li ntawm 0.20dB / km, thiab attenuation ntawm qis optical fiber ntau thiab tsis muaj fiber ntau optical fiber ntau dua 0.185dB / km thiab 0.170dB / km, feem.

Piv nrog fiber ntau fiber ntau, tsawg-poob, ultra-low-loss optical fiber yuav txo tau qhov poob ntawm 2dB thiab 3dB, feem. Txawm hais tias qhov tsawg ntawm cov theem tsis hloov, nws tuaj yeem coj li ntawm 17% nce toj nrug ib ntu, thiab tag nrho cov kis tau tus mob kuj nce mus ntxiv ntawm 17%.

Rau tes hauj lwm high-speed kis tau tus mob, nyob rau hauv kis tus nqi ntawm 100G, cov khoom siv fiber ntau optical, low-fiber optical fiber ntau, thiab ultra-low-loss optical fiber tau tag nrho tawm tshaj 1,000 kilometers. Tsuas yog rau ob peb lub sij hawm ntev, cov khoom siv fiber ntau optical fiber muaj peev xwm tiv thaiv nrog nws; rau 400G, Cov ntawv pov thawj, cov nyiaj qes qes qis tuaj yeem txo cov naj npawb ntawm cov khoom noj tshiab los ntawm kwv yees li 20%, cov qaub ncaug qis tsis zoo yuav txo tau tus naj npawb ntawm cov khoom noj tshiab los ntawm kwv yees li 40%, thiab cov txiaj ntsig yog pom tseeb.

Cov yam ntxwv zoo tshaj plaws ntawm cov tsis muaj fiber ntau optical fiber ntau muab optimum fiber ntau rau fiber ntau qhov fiber ntau mus cuag cov kev hloov hauv kev sib txuas network, qhov chaw pib, hloov nce nqi me ntsis, nce qhov yooj ntawm network Cheebtsam, lossis ntev tus neeg ua haujlwm Qhov kev ncua deb ntawm lawv enables ib lub sijhawm ntev thiab dav dav hauv lub network kom tau raws li qhov kev xav tau nce rau kev muaj peev xwm hauv ntiaj teb.