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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), Cibiyar Rarraba Rarraba Wavelength (OWDN) da Naúrar hanyar sadarwa ta gani (ONU: Na'urar sadarwa ta gani), kamar yadda aka nuna a hoto na 1.OLTshine kayan aikin ofishi na tsakiya, gami da madaidaicin raƙuman raƙuman raƙuman ruwa na gani da yawa / demultiplexer (OM/OD). Gabaɗaya, tana da ayyuka kamar sarrafawa, musanya, da gudanarwa. OM/OD na babban ofishin za a iya raba jiki daOLTkayan aiki. OWDN yana nufin cibiyar sadarwa na gani da ke tsakaninOLTda kumaONU, kuma ya gane rarraba tsawon zangon dagaOLTzuwa gaONUko dagaONUzuwa gaOLT. 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. TheONUan sanya shi 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 da yawa daban-daban ana watsa su zuwa OWDN bayan yawancin OM/OD na babban ofishin, kuma an keɓe su ga kowane.ONUbisa ga daban-daban raƙuman ruwa. A cikin hanya mai zuwa, mai amfani daban-dabanONUfitar da nau'ikan raƙuman gani daban-daban lu1…n lun zuwa OWDN, multiplex a PRN na OWDN, sannan watsa zuwa gaOLT. 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.



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