Hauv kev sib txuas lus kho qhov muag, bandwidth loj dua, kev sib kis ntev dua, thiab kev tau txais siab dua yog ib txwm yog cov hom phiaj ntawm kev tshawb nrhiav. Nrog rau kev siv thev naus laus zis kev sib txuas lus xws li kev sib tham video thiab kev tawg ntawm cov ntaub ntawv tsim los ntawm kev nrov hauv Is Taws Nem, kev sib kis tau zoo dua yuav tsum tau muab tso rau pem hauv ntej rau lub cev txheej, uas yog lub hauv paus ntawm tag nrho cov kev sib txuas lus. Tsav los ntawm kev thov muaj zog, loj-teev tso ntawmDWDM systemsNws yog maj mam tso nws cov peev txheej wavelength, thiab tseem muaj cov kev ua haujlwm loj loj los txhim kho kev ua haujlwm ntawm lub sij hawm faib multiplexing (TDM) systems los ntawm compressing optical pulses. Tawm tsam qhov keeb kwm yav dhau no, zoo li tsis nco qab kev sib koom ua ke tau rov qab nyiam dua.
Txoj kev xav thiab kev sim ntawm kev sib txuas lus kho qhov muag tau pib hauv xyoo 1980s. Lub coherent optical kev sib txuas lus system tau lees paub tias muaj qhov zoo ntawm kev nkag siab zoo. Lub teb chaws tau ua ntau txoj kev tshawb fawb txog kev sib txuas lus kho qhov muag: vim yog kev txhim kho ntawm EDFA thiab WDM thev naus laus zis, kev tshawb fawb ntawm kev sib txuas lus kho qhov muag tau ib zaug txhim kho qeeb. Txawm li cas los xij, nrog rau lub sijhawm dhau mus, ntau qhov teeb meem tau ua rau nws nyiam ntau dua. Hais txog kev sib txuas lus digital, yuav ua li cas nthuav dav lub peev xwm ntawm C-band amplifiers, kov yeej qhov cuam tshuam ntawm fiber ntau dispersion cuam tshuam, thiab ua kom muaj peev xwm thiab ntau yam ntawm kev sib kis ntawm qhov chaw dawb tau dhau los ua qhov kev vam meej zoo los ntawm cov kws tshawb fawb hauv cov khoom siv kho qhov muag, xws li lasers. Cov zis hluav taws xob, kab dav, ruaj khov thiab suab nrov, nrog rau cov duab thaij duab bandwidth, lub zog tuav, thiab hom kev tsis lees txais qhov sib piv tau zoo heev, raws li qhov ua tau zoo ntawm microwave electronics. Cov kev nce qib no ua rau nws muaj peev xwm ua lag luam kev sib txuas lus kho qhov muag.
Raws li lub sijhawm tshiab keeb kwm, Qee lub tuam txhab tau txiav txim siab ua ntej. Hauv kev tshawb fawb ntawm kev sib txuas lus kho qhov muag, nws tau tsim nws tus kheej tsim ib leeg LambdaCFP-DCO100G coherent optical module, uas siv DP-D / QPSK modulation thev naus laus zis kom tau raws li tag nrho C-band ITU-T adjustable (50/100GHz) tus qauv 100GE interface (customizable OUT4) ua raws li CFP-MSA raws tu qauv, uas yog yooj yim rau cov neeg siv ncaj qha mus rau cov khoom uas twb muaj lawm: customized kev tshawb fawb thiab kev loj hlob rau cov ntaub ntawv chaw interconnection (DCI), lub nroog cheeb tsam network daim ntaub ntawv, kis nrug deb (~ 100Km), Txhawb P2P thiab DWDM kis tau tus mob. Silicon photonics thev naus laus zis yog siv los ua ke cov kev daws teeb meem zoo kom tau raws li cov ntawv siv hluav taws xob tsawg (~ 22W) thiab lav tag nrho kev ua tau zoo, thiab tuaj yeem muab cov kev daws teeb meem customizable raws li daim ntawv thov scenarios.
100G coherent optical module belongs rau kev tshawb fawb teb ntawm100 GDWDMkis tau tus mob mus ntev. Nws yog tsuas yog siv rau kab-sab optical kis tau tus mob ntawm 100G wavelength division system. Piv nrog rau lwm yam ntau yam ntawm kab-sab optical modules, nws muaj OSNR kev ua tau zoo, rhiab heev thiab dispersion kam rau ua. , DGD kam rau ua, yog li nws tau dhau los ua ib qho kev xaiv hauv kev lag luam. Nws cov thev naus laus zis tseem ceeb feem ntau suav nrog DP-QPSK kev hloov kho thev naus laus zis, thev naus laus zis tshawb pom thiab DSP ua cov thev naus laus zis, thiab lwm yam. Qhov zoo thiab qhov tsis zoo ntawm qhov kev ua tau zoo yog feem ntau cuam tshuam hauv CD, PMD kam rau ua, ONSR thiab cov teebmeem tsis zoo.
