Raws li peb paub, txij li xyoo 1990, WDM WDM thev naus laus zis tau siv rau ntev-optic kev txuas ntawm ntau pua lossis txawm tias ntau txhiab mais. Rau feem ntau cov teb chaws ntawm lub teb chaws, cov cuab yeej siv fiber ntau yog nws cov cuab tam uas kim tshaj plaws, thaum tus nqi ntawm kev hloov pauv hloov tau tsawg.
Txawm li cas los xij, nrog kev tawg ntawm cov ntaub ntawv tus nqi hauv cov tes haujlwm xws li 5G, uas tau siv ntau dua hauv cov nqi luv luv thiab yog li ntawd ntau tus nqi rau cov nqi thiab qhov loj me ntawm kev hloov pauv ntawm cov sibtham.
Tam sim no, cov network no tseem tso siab rau ntau txhiab tus qauv siv hluav taws xob ntau zaus los ntawm cov chaw seem ntawm feem ntau, nrog qee qhov kev siv tsawg kawg hauv T-chav kawm.
Txawm li cas los xij, nyob rau hauv lub sijhawm yav tom ntej, lub tswv yim ntawm cov kev sib txawv ntawm cov dej ntws hauv txhua qhov kev sib tw ntawm cov ntaub ntawv ntws hauv txhua qhov fiber ntau hauv kev txiav txim siab ntxiv hauv cov ntaub ntawv cov ntaub ntawv. Qhov no tuaj yeem qhib tag nrho cov kev thov tshiab rau WDM thev naus laus zis, nyob rau hauv uas cov thev naus laus zis ntawm cov channel thiab cov ntaub ntawv yog qhov tseem ceeb heev.
Hauv cov ntsiab lus no,Lub Zog Qhov Muag Zaus Tshaj Generator (FCG)Ua lub luag haujlwm tseem ceeb ua cov kev cog lus, tsau, ntau-wavelength teeb cov khoom uas tuaj yeem muab cov khoom siv loj ntawm cov khoom siv zoo. Tsis tas li ntawd, ib qho tshwj xeeb tseem ceeb ntawm kev kho qhov muag ntau dua yog tias kev tiv thaiv kev tswj hwm sib luag yog qhov yuav tsum muaj rau ib txoj kev sib luag hauv cov txheej txheem ntawm DFB lasers.
Nws yog ib qho tseem ceeb kom nco ntsoov tias cov txiaj ntsig no tsis yog rau WDM transmitters tab sis kuj ua rau lawv cov neeg tau txais, qhov uas tsis tau hloov hauv zos Kev siv cov tshuab xov tooj txuas ntxiv yooj yim Cov teeb liab kev ua rau WDM channel, Li ntawd txo cov neeg tau txais kev ua haujlwm thiab nce theem suab nrov tsis kam.
Tsis tas li ntawd, kev siv cov cim zuag nrog theem-xauv rau cov kev sib tw ntawm WDM tshwm sim los ntawm kev puas tsuaj ntawm kev kis tau cov fiber ntau. Ntxiv nrog rau cov txiaj ntsig zoo ntawm cov ntsiab lus ntawm cov kev sib txuas, me me thiab muaj nqi ntau dua qub kuj tseem ceeb rau yav tom ntej WDM transceivers.
Yog li ntawd, ntawm cov zuag qhia ntau lub cim hluav taws xob cov ntsiab lus, nti-teev cov khoom siv yog kev nyiam tshwj xeeb. Thaum ua ke nrog cov ntsuas hluav taws xob zoo heev rau cov qauv teeb meem uas tuaj yeem tuav tau qhov tseem ceeb ntawm cov nqi qis, nrog kev sib tw ntawm tus nqi qis, nrog kev sib tw ntawm lub hau ntawm TUPOS / S ib Fiber.
Daim duab hauv qab no tau hais txog kev siv WDM uas siv lub teeb pom kev zoo sib cais ntawm cov teeb meem sib xyaw ua ntej sib cais (demux) thiab tom qab ntawd nkag mus rau EOM Electro-Optical Modulator. Los ntawm, lub teeb liab yog raug rau Advanced Qam Quadrinature Ondening qauv rau kev ua kom zoo tshaj plaws rau kev ua tau zoo (se).
Ntawm lub transmitterter egress, cov channel yog recombined nyob rau hauv ib tug ntau tus (MUX) thiab WDM cov cim tau kis tau dhau ib hom fiber ntau. Thaum tau txais kawg, lub wavelength division multiplexing tau txais (WDM RX), siv lub nroog oscillator ntawm 2nd FCG rau multwwavelength qhia kev tshuaj xyuas. Cov channel ntawm cov lus qhia WDM cov cim tau sib cais los ntawm cov demultiplexer thiab pub rau tus txais kev siv lub ntsej muag (Coh. RX). Qhov twg demultInterxing zaus ntawm cov oscillator hauv zos tau siv los ua theem siv rau txhua tus tau txais. Cov kev ua tau zoo ntawm WDM txuas obviously nyob ntawm ib tug loj nyob rau hauv lub generator ntawm lub tshuab hluav taws xob, tshwj xeeb ntawm kab hluav taws xob dav thiab lub zog kho qhov muag rau ib kab.
Ntawm chav kawm, kho qhov muag zaus zuag Technology tseem nyob rau theem kev loj hlob, thiab nws cov ntawv thov kev lag luam thiab qhov loj me me. Yog tias nws tuaj yeem kov yeej cov lag luam me, txo tus nqi thiab txhim kho kev ntseeg tau, tom qab ntawd nws yuav ua tiav cov ntawv thov teev qib hauv qhov muag.
Lub Sijhawm Post: Nov-21-2024