Optical wavelength division multiplexing yog ib qho kev siv tshuab uas xa cov teeb liab ntau wavelength optical hauv ib fiber ntau optical.Lub hauv paus ntsiab lus tseem ceeb yog ua ke (multiplex) kho qhov muag teeb liab ntawm qhov sib txawv wavelengths ntawm qhov kawg xa tawm, ua ke rau tib lub fiber ntau ntawm cov kab hluav taws xob kho qhov muag rau kev sib kis, thiab cais (demultiplex) cov teeb liab kho qhov muag ntawm qhov sib xyaw wavelengths ntawm qhov kawg tau txais. ., thiab ua tiav ntxiv, thawj lub teeb liab tau rov qab thiab xa mus rau qhov sib txawv terminals.
WDM wavelength division multiplexing tsis yog lub tswvyim tshiab.Thaum pib ntawm qhov tshwm sim ntawm kev sib txuas lus fiber ntau optical, tib neeg pom tau hais tias qhov bandwidth loj ntawm optical fiber ntau tuaj yeem siv rau kev sib kis wavelength multiplexing kis tau tus mob, tab sis ua ntej xyoo 1990, tsis muaj kev cuam tshuam loj hauv cov thev naus laus zis no.Kev loj hlob sai Los ntawm 155Mbit / s mus rau 622Mbit / s rau 2.5Gbit / s System TDM tus nqi tau nce quadrupling nyob rau hauv ob peb xyoos dhau los Cov neeg tsis tshua muaj siab rau lwm cov thev naus laus zis thaum ib lub thev naus laus zis mus nrawm Ib puag ncig xyoo 1995 Ib qho laj thawj tseem ceeb rau kev hloov pauv hauv txoj kev loj hlob ntawm WDM system yog tias tib neeg tau ntsib teeb meem hauv TDM 10Gbit / s thev naus laus zis thaum lub sijhawm ntawd, thiab ntau lub qhov muag tsom mus rau kev nthuav dav thiab ua tiav ntawm cov teeb liab kho qhov muag.Tsuas yog tom qab ntawd puas WDM system muaj ntau yam kev siv thoob ntiaj teb..
Post lub sij hawm: Jun-20-2022