Raws li cov tib neeg muaj kev xav tau ntau dua thiab ntau dua ntawm cov kab bandwidth, cov khoom siv sib faib ua ntu ntev sib faib (DWDM) cov khoom siv tau ua tiav zoo hauv kev txo nqi, yog li nws muaj ntau dua thiab nrov npe hauv khw. Txawm li cas los xij, ntxhib ntaws-sib faib cov xov tooj sib txuam sib tshooj sib xyaw (CWDM) tseem muaj cov txiaj ntsig zoo hauv kev sib txuas tus nqi qis dua 10G thiab hauv kev xa xov luv luv. Hauv kev tsim kho ntawm cov ntaub ntawv qis tus nqi network, nws tseem yog cov cuab yeej tshaj plaws tam sim no.
Cov khoom sib kis ntawm CWDM / DWDM WDM khoom siv
CWDM wavelength division multiplexing khoom thiab DWDM WDM cov khoom siv hauv nws lub OTN network muaj lawv cov txiaj ntsig zoo, vim qhov zoo ntawm CWDM wavelength division multiplexing cov khoom siv tuaj yeem siv tau tus nqi tsawg tsis xav tau qhov txias ntawm DFB laser thiab tsis tshua muaj nqi ntawm passive filter , yog li CWDM wavelength faib multiplexing cov cuab yeej siv tshuab sib txuas hauv cov khoom siv dav dav ntawm DWDM WDM system.
Txawm hais tias cov qauv kho qhov muag pheej yig dua tuaj yeem siv hauv DWDM cov tshuab los ntawm kev siv CWDM thev naus laus zis, cov xov tooj ntawm cov wavelengths muaj ntawm yuav raug txo vim muaj qhov sib nrug loj ntawm CWDM channel, uas txwv qhov kis tau ntawm lub zog, yog li nws tseem tsis tuaj yeem nrog cov tsis muaj kev sib xyaw DWDM WDM multiplexers rau qee yam.
Nws tuaj yeem pom los ntawm kev txheeb xyuas saum toj no tias CWDM WDM thiab DWDM WDM cov khoom siv yuav ua tiav ntau dua li hloov chaw sib ntxiv rau yav tom ntej.
