Isku dhufashada mawjada dhererka indhaha waa tignoolajiyad gudbisa calaamadaha indhaha ee mowjadaha dheer ee hal fiber indhaha ah.Mabda'a aasaasiga ah waa in la isku daro (multiplex) calaamadaha indhaha ee hirarka hirarka kala duwan ee dhamaadka gudbinta, ku dheji isla fiber indhaha oo ku yaal khadka fiilada indhaha si loo gudbiyo, oo loo kala saaro (demultiplex) calaamadaha indhaha ee mawjadaha dhererka isku dhafan ee dhamaadka helitaanka. ., oo la sii farsameeyo, calaamadii asalka ahayd waa la soo ceshay waxaana loo diraa meelo kala duwan.
Mawjada dhererka WDM isku dhufashada ma aha fikrad cusub.Bilawgii muuqaalka isgaadhsiinta fiber optic-ga, dadku waxay ogaadeen in baaxadda baaxadda weyn ee fiber-ka indhaha loo isticmaali karo gudbinta isku-dhufashada ee dhererka dhererka, laakiin ka hor 1990-meeyadii, ma jirin horumar weyn oo xagga farsamada ah.Horumarka degdega ah Laga bilaabo 155Mbit/s ilaa 622Mbit/s ilaa 2.5Gbit/s Nidaamka TDM ayaa afar laablaabmay dhowrkii sano ee la soo dhaafay Dadku dhif ayay u fiirsadaan tignoolajiyada kale marka hal tignoolajiyada ay si degdeg ah u socoto Abbaarihii 1995kii Waa sabab muhiim ah oo ah barta rogashada horumarinta nidaamka WDM ayaa ah in dadku ay la kulmeen dib u dhac ku yimid tignoolajiyada TDM 10Gbit/s wakhtigaas, iyo indhooyin badan oo diiradda saarayay isku-dhufashada iyo habaynta calaamadaha indhaha.Kaliya markaa nidaamka WDM wuxuu lahaa codsiyo kala duwan oo adduunka oo dhan ah..
Waqtiga boostada: Juun-20-2022