Peb paub tias txij li xyoo 1990, WDM wavelength kev faib cov cuab yeej siv fiber ntau fiber ntau cov optic txuas ntau pua lossis txawm tias ntau txhiab mais. Rau feem ntau lub teb chaws thiab cheeb tsam, fiber ntau cov txhab hluav taws xob yog lawv cov cuab tam uas kim tshaj plaws, thaum tus nqi ntawm Transceiver sib xyaw yog qhov tsawg.
Txawm li cas los xij, nrog kev loj hlob tawg ntawm cov ntaub ntawv cov ntaub ntawv kis tau xws li 5G, thiab cov khoom siv xa tawm ntau dua, ua rau tus nqi thiab qhov loj me ntawm Transceier sib zog.
Nyob rau tam sim no, cov network no tseem tso siab rau txhiab ib txhiab tus kab mob sib tshooj los ntawm kev sib faib cov channel ntau, feem ntau tsuas yog ob peb puas yog ob peb khob / 800g). T-qib yuav muaj cov ntawv thov txwv.
Tab sis nyob rau hauv lub sijhawm yav tom ntej, lub tswv yim ntawm kev sib tw zoo nkauj ib txwm yuav ncav cuag nws cov roj ntsha kom muaj kev txhim kho hauv txhua qhov kev txhim kho txuas ntxiv hauv cov ntaub ntawv tus nqi. Qhov no tuaj yeem qhib tag nrho cov chaw thov tshiab rau wavelength divised multiоing ntau thev naus laus zis thiab cov ntaub ntawv yog qhov tseem ceeb.
Hauv qhov no, zaus sib zog ua ke (FCG), raws li ib qho kev sib txuas thiab tsau ntau ntawm cov khoom siv zoo ntawm cov khoom lag luam, yog li ua si ib lub luag haujlwm tseem ceeb. Ib qho ntxiv, ib qho tshwj xeeb tseem ceeb ntawm kev siv hluav taws xob ntau tshaj, uas tuaj yeem tswj hwm cov kab hauv Inter Tib neeg siv
Nws yuav tsum raug sau tseg tias cov txiaj ntsig no tsis tsuas yog siv rau lub wavelength divised multcillator (lo) array tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib tus zuag tuaj yeem hloov los ntawm ib tus zuag tuaj yeem hloov los ntawm ib tus zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib tus zuag tuaj yeem hloov los ntawm ib tus zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib tus zuag tuaj yeem hloov los ntawm ib tus zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib tus zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib tus zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho zuag tuaj yeem hloov los ntawm ib qho kev sib txuas ntawm ib leeg Kev siv ntawm cov tshuab zuag tuaj yeem pab txhawb digital teeb liab kev ua haujlwm hauv wavelength channels thiab txhim kho theem suab nrov tsis kam.
Tsis tas li ntawd, siv cov cim zuag ntsis nrog theem-xauv ua haujlwm rau cov teeb liab uas tau tsim dua los ntawm kev puas tsuaj los ntawm cov khoom siv tsis sib raug zoo ntawm cov kis las. Ntxiv nrog rau cov tswv yim zoo raws li kev sib txuas cov cim kev sib kis, loj dua thiab kev lag luam muaj peev xwm tseem ceeb ntawm lub suab yav tom ntej wavelength kev hloov pauv.
Yog li ntawd, ntawm ntau lub teeb liab teeb liab ntsiab lus, nti qib tau yog qhov tshwj xeeb tshaj plaws. Thaum ua ke nrog cov tshuab hluav taws xob tau sib xyaw ua ke rau cov ntaub ntawv muaj peev xwm sib xyaw ntawm cov nqi qis, nrog cov khoom muaj peev xwm kis tau ntawm cov nqi ntawm kaum ntawm TENS ntawm TENS NTAWM TENS NTAWM TENS.
Ntawm cov zis ntawm kev xa cov ntawv kawg, txhua channel yog sau los ntawm tus neeg (MUX), thiab lub wavelength division teeb liab yog kis tau los ntawm ib hom fiber ntau. Ntawm qhov tau txais kawg, lub wavelength division multiplexing tau txais (WDM RX) siv lub zos oscillator ntawm ob FCG rau ntau cov wavelength cuam tshuam kev kuaj pom. Cov channel ntawm lub tswv yim wavelength kev faib cov teeb liab sib cais los ntawm cov demultiplexer thiab tom qab ntawd xa mus rau tus txais kev siv lub ntsej muag (Coh. RX). Ntawm lawv, qhov demicipleXing zaus ntawm cov oscillator hauv zos tau siv raws li theem siv rau txhua tus tau txais txhua tus tau txais. Cov kev ua tau zoo ntawm no wavelength faib multipion connectionly nyob ntawm cov teeb tsa cov teeb liab teeb liab, tshwj xeeb tshaj yog qhov dav ntawm txhua kab sib txuas.
Ntawm chav kawm, kho qhov muag zaus sib xyaw ua thev naus laus zis tseem nyob hauv theem kev txhim kho, thiab nws cov ntawv thov kev ua lag luam thiab qhov loj me me. Yog tias nws tuaj yeem kov yeej backlencks, txo tus nqi, thiab txhim kho kev ntseeg tau, nws tuaj yeem ua tiav qib kev ntsuas hauv qhov muag.
Lub Sijhawm Post: Dec-19-2024