DWDM System Structure

DWDM tau muab faib los ntawm cov qauv, muaj kev sib koom ua ke thiab qhib qhov system tam sim no. Kev sib xyaw ua ke: Cov teeb liab kho qhov muag ntawm lub davhlau ya nyob twg ntawm ib qho khoom siv kho qhov muag kis tau tus mob yuav tsum tau ua kom tau raws li qhov yuav tsum tau ua ntawm G. 692 tus qauv teeb pom kev zoo. Lub kaw lus qhib yog ntxiv lub wavelength conversion unit OTU nyob rau hauv pem hauv ntej kawg ntawm lub combiner thiab tom qab kawg ntawm lub demultiplexer, thiab hloov lub tam sim no nquag siv G. 957 interface wavelength conversion rau G. 692 standard wavelength optical interface. Ua li no, qhib qhov system siv wavelength conversion tshuab? Cia txhua qhov txaus siab G. Cov teeb liab kho qhov muag xav tau los ntawm Kev Pom Zoo 957 tuaj yeem hloov kho kom tau raws li qhov yuav tsum tau ua ntawm G. 692 tus qauv wavelength optical teeb liab, thiab tom qab ntawd los ntawm wavelength division multiplexing, thiaj li yuav kis tau ntawm DWDM system.

DWDM tam sim no muaj peev xwm muab ib leeg-fiber kis tau tus mob muaj peev xwm ntawm 16/20 nthwv dej los yog 32/40 nthwv dej, nrog rau qhov siab tshaj plaws ntawm 160 nthwv dej, nrog lub peev xwm nthuav dav. Cov neeg siv tuaj yeem tsim 16/20 nthwv dej ntawm qhov pib theem, thiab tom qab ntawd hloov mus rau 32/40 nthwv dej raws li lawv xav tau, uas tuaj yeem txuag tau thawj zaug peev. Lub hauv paus ntsiab lus ntawm txoj kev hloov kho tshiab: ib qho yog hloov kho C-band liab band 16 nthwv dej thiab xiav band 16 nthwv dej rau 32 nthwv dej; Lwm qhov yog siv cov interleaver los txhim kho C-band los ntawm 200GHz lub sijhawm 16/32 nthwv dej mus rau 100GHz lub sijhawm 20/40 nthwv dej. Txhawm rau kom muaj peev xwm nthuav dav ntxiv, C ntxiv rau L band nthuav dav txoj kev npaj tuaj yeem muab ntxiv kom nthuav dav cov kab ke sib kis mus rau 160 nthwv dej.