Cov lus tseem ceeb: kev nce peev xwm ntawm lub network optical, kev tsim kho tshiab ntawm thev naus laus zis, cov phiaj xwm sim ua haujlwm ceev ceev maj mam pib
Nyob rau hauv lub caij nyoog ntawm lub zog xam zauv, nrog rau kev tsav tsheb muaj zog ntawm ntau yam kev pabcuam tshiab thiab daim ntawv thov, ntau lub peev xwm txhim kho cov thev naus laus zis xws li tus nqi teeb liab, qhov dav spectral muaj, hom multiplexing, thiab cov xov xwm xa xov tshiab txuas ntxiv tsim kho tshiab thiab txhim kho.
Ua ntej tshaj plaws, los ntawm qhov kev xav ntawm qhov interface lossis channel teeb liab nce ntxiv, qhov ntsuas ntawm10G PONKev xa tawm hauv lub network nkag tau nthuav dav ntxiv, cov qauv kev siv tshuab ntawm 50G PON feem ntau tau ruaj khov, thiab kev sib tw rau 100G / 200G PON kev daws teeb meem yog qhov hnyav; lub network kis tau yog dominated los ntawm 100G / 200G ceev nthuav dav, qhov sib piv ntawm 400G cov ntaub ntawv chaw sab hauv lossis sab nraud kev sib txuas lus tus nqi yuav nce ntxiv, thaum 800G / 1.2T / 1.6T thiab lwm yam khoom lag luam siab dua thiab kev tshawb fawb tus qauv kev siv tshuab tau txhawb nqa ua ke, thiab ntau lub tuam txhab tsim khoom sib txuas lus optical txawv teb chaws yuav tsum tso tawm 1.2T lossis siab dua tus nqi sib xws DSP ua cov khoom lag luam lossis cov phiaj xwm tsim kho pej xeem.
Qhov thib ob, los ntawm qhov kev xav ntawm cov spectrum muaj rau kev xa xov, kev nthuav dav maj mam ntawm C-band lag luam mus rau C + L band tau dhau los ua kev daws teeb meem sib koom ua ke hauv kev lag luam. Nws xav tias qhov kev ua tau zoo ntawm kev xa xov hauv chaw kuaj mob yuav txuas ntxiv txhim kho xyoo no, thiab tib lub sijhawm txuas ntxiv ua kev tshawb fawb ntawm cov spectrum dav dua xws li S + C + L band.
Qhov thib peb, los ntawm qhov kev xav ntawm kev sib txuas lus ntawm lub teeb liab, kev siv tshuab sib txuas lus ntawm qhov chaw yuav raug siv los ua kev daws teeb meem mus sij hawm ntev rau qhov teeb meem ntawm lub peev xwm xa xov. Lub kaw lus cable submarine raws li kev nce qib ntawm cov khub fiber ntau yuav txuas ntxiv mus rau kev xa tawm thiab nthuav dav. Raws li hom multiplexing thiab / lossis ntau yam Cov thev naus laus zis ntawm core multiplexing yuav txuas ntxiv mus kawm tob, tsom mus rau kev nce qhov deb ntawm kev xa xov thiab txhim kho kev ua haujlwm ntawm kev xa xov.
Tom qab ntawd, los ntawm qhov kev xav ntawm cov xov xwm xa xov tshiab, G.654E ultra-low-loss optical fiber yuav dhau los ua thawj qhov kev xaiv rau lub cev network thiab txhawb kev xa tawm, thiab nws yuav txuas ntxiv kawm rau qhov chaw-faib multiplexing optical fiber (cable). Spectrum, qeeb qis, tsis tshua muaj nonlinear effect, qis dispersion, thiab lwm yam zoo tau dhau los ua qhov tseem ceeb ntawm kev lag luam, thaum kev poob kis thiab cov txheej txheem kos duab tau raug kho kom zoo dua. Tsis tas li ntawd, los ntawm qhov kev xav ntawm thev naus laus zis thiab kev txheeb xyuas cov khoom tiav, kev saib xyuas kev txhim kho kev lag luam, thiab lwm yam, cov neeg ua haujlwm hauv tsev yuav tsum tso tawm cov tes hauj lwm nyob ntawm cov kab ke ceev xws li DP-QPSK 400G kev ua haujlwm ntev, 50G PON dual-hom kev sib koom ua ke thiab kev sib kis symmetrical hauv xyoo 2023. Cov haujlwm txheeb xyuas kev xeem ntxiv txheeb xyuas qhov kev loj hlob ntawm cov khoom sib txuas ceev ceev thiab tso lub hauv paus rau kev xa tawm lag luam.
Thaum kawg, nrog kev txhim kho ntawm cov ntaub ntawv sib txuas lus thiab kev hloov pauv peev xwm, kev sib koom ua ke siab dua thiab kev siv hluav taws xob qis dua tau dhau los ua qhov yuav tsum tau txhim kho ntawm cov khoom siv kho qhov muag ntawm lub hauv paus ntawm kev sib txuas lus kho qhov muag, tshwj xeeb tshaj yog nyob rau hauv cov ntaub ntawv siv chaw, thaum lub peev xwm hloov pauv mus txog 51.2Tbit / s Thiab saum toj no, daim ntawv sib xyaw ua ke ntawm cov khoom siv kho qhov muag nrog tus nqi ntawm 800Gbit / s thiab saum toj no yuav ntsib kev sib tw ua ke ntawm pluggable thiab photoelectric pob (CPO). Nws xav tias cov tuam txhab xws li Intel, Broadcom, thiab Ranovus yuav txuas ntxiv hloov kho tshiab hauv xyoo no Ntxiv rau cov khoom lag luam CPO thiab cov kev daws teeb meem uas twb muaj lawm, thiab tej zaum yuav tso tawm cov qauv khoom tshiab, lwm lub tuam txhab thev naus laus zis silicon photonics kuj tseem yuav ua raws li kev tshawb fawb thiab kev txhim kho lossis ua tib zoo mloog rau nws.
Ntxiv mus, hais txog kev siv tshuab photonic integration raws li cov ntawv thov optical module, silicon photonics yuav nyob ua ke nrog III-V semiconductor integration technology, vim tias silicon photonics technology muaj kev sib koom ua ke siab, ceev ceev, thiab sib xws zoo nrog cov txheej txheem CMOS uas twb muaj lawm. Silicon photonics tau maj mam siv rau hauv nruab nrab thiab luv luv pluggable optical modules, thiab tau dhau los ua thawj qhov kev daws teeb meem rau CPO kev koom ua ke. Kev lag luam muaj kev cia siab txog kev txhim kho yav tom ntej ntawm silicon photonics technology, thiab nws daim ntawv thov kev tshawb nrhiav hauv kev suav optical thiab lwm yam teb kuj yuav raug ua tiav.
Lub sijhawm tshaj tawm: Plaub Hlis-25-2023