Tsarin rarraba raƙuman haske (optical wavelength division multiplexing) fasaha ce da ke watsa siginar gani mai tsawon zango da yawa a cikin zare ɗaya na gani. Babban ƙa'idar ita ce haɗa siginar gani (multiplex) na raƙuman tsayi daban-daban a ƙarshen watsawa, haɗa su da zare ɗaya na gani akan layin kebul na gani don watsawa, da kuma raba siginar gani (demultiplex) na raƙuman tsayi da aka haɗa a ƙarshen karɓa. , sannan a ci gaba da sarrafa su, ana dawo da siginar asali kuma a aika ta zuwa tashoshi daban-daban.
Tsarin rarraba wavelength rabe-raben WDM ba sabon abu bane. A farkon bayyanar sadarwa ta fiber optic, mutane sun fahimci cewa ana iya amfani da babban bandwidth na fiber optic don watsawa mai yawa na tsawon rai, amma kafin shekarun 1990, babu wani babban ci gaba a wannan fasaha. Ci gaba cikin sauri Daga 155Mbit/s zuwa 622Mbit/s zuwa 2.5Gbit/s Tsarin TDM Rate yana ninka sau huɗu a cikin 'yan shekarun nan Mutane ba sa yawan mai da hankali ga wata fasaha lokacin da wata fasaha ke tafiya da sauri A kusa da 1995 Wani muhimmin dalili na juyin juya hali a cikin ci gaban tsarin WDM shine cewa mutane sun fuskanci koma baya a cikin fasahar TDM 10Gbit/s a wancan lokacin, kuma mutane da yawa sun mai da hankali kan mai yawa da sarrafa siginar gani. Sai kawai tsarin WDM ya sami aikace-aikace iri-iri a duk faɗin duniya. .
Lokacin Saƙo: Yuni-20-2022