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    Ka'idodin asali na WDM PON

    Lokacin aikawa: Agusta-20-2021

    WDM PON cibiyar sadarwa ce mai ma'ana-zuwa-ma'a ta amfani da fasaha mai juzu'in rabe rabe-rabe.Wato, a cikin fiber guda ɗaya, adadin madaidaicin igiyoyin da aka yi amfani da su a cikin sassan biyu sun fi 3, kuma yin amfani da fasaha na multixing na raƙuman raƙuman raƙuman ruwa don cimma nasarar samun damar haɓakawa zai iya samar da bandwidth mafi girma a cikin ƙananan farashi, wanda shine muhimmin jagorar ci gaba ga na gaba Optical fiber access.Tsarin WDM PON na yau da kullun ya ƙunshi sassa uku: Layin Layi na gani (OLT), Rarraba Rarraba Wavelength Network (OWDN) da Na'urar Sadarwar Yanar Gizo (ONU: Na'urar Sadarwar Yanar Gizo), kamar yadda aka nuna a cikin Hoto 1. OLT shine kayan aikin ofis na tsakiya, gami da Rarraba raƙuman raƙuman gani na gani Multixer/demultiplexer (OM/OD).Gabaɗaya, tana da ayyuka kamar sarrafawa, musanya, da gudanarwa.OM/OD na ofishin tsakiya za a iya raba jiki da kayan aikin OLT.OWDN yana nufin hanyar sadarwa na gani da ke tsakanin OLT da ONU, kuma ta gane raƙuman raƙuman ruwa daga OLT zuwa ONU ko daga ONU zuwa OLT.Haɗin jiki ya haɗa da fiber mai ciyarwa da kumburin nesa mai wucewa (PRN: Node Nesa Mai Wucewa).PRN ya haɗa da grating mai tsararrun raƙuman raɗaɗi (AAWG: Athermal Arrayed Waveguide Grating).AAWG na'urar gani ce mai tsayi-tsawon raƙuman raƙuman ruwa wacce ke aiwatar da yawan tsayin raƙuman gani da ayyukan lalata.Ana sanya ONU a tashar mai amfani kuma na'urar tasha ce a gefen mai amfani.

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    A cikin hanyar da ke ƙasa, ld1… ldn daban-daban ana watsa shi zuwa OWDN bayan yawancin OM/OD na ofishin tsakiya, kuma ana keɓe ga kowane ONU bisa ga tsayin raƙuman ruwa daban-daban.A cikin jagorar sama, ONUs masu amfani daban-daban suna fitar da nau'ikan raƙuman gani daban-daban lu1… lun zuwa OWDN, multiplex a PRN na OWDN, sannan aika zuwa OLT.Kammala watsa siginar gani na sama da ƙasa.Daga cikin su, ldn mai tsayin raƙuman ruwa na ƙasa da hasken rana na sama na iya aiki a cikin igiyar igiyar igiya ɗaya ko maɓalli daban-daban.



    yanar gizo 聊天