WDM PON ke ntlha-to-point passive optical network e sebelisang theknoloji ea wavelength division multiplexing.Ke hore, ka fiber e tšoanang, palo ea maqhubu a maqhubu a sebelisoang ka mahlakoreng ka bobeli a feta 3, 'me tšebeliso ea thekenoloji ea "wavelength division multiplexing" ho finyella phihlello ea uplink e ka fana ka bandwidth e kholo ea ho sebetsa ka theko e tlase, e leng tataiso ea bohlokoa ea nts'etsopele bakeng sa. nakong e tlang Optical faeba phihlello.Mokhoa o tloaelehileng oa WDM PON o na le likarolo tse tharo: Optical Line Terminal (OLT), Optical Wavelength Distribution Network (OWDN) le Optical Network Unit (ONU: Optical Network Unit), joalokaha ho bontšitsoe setšoantšong sa 1. OLT ke thepa ea ofisi e bohareng, ho akarelletsa le optical wavelength division multiplexer/demultiplexer (OM/OD).Ka kakaretso, e na le mesebetsi e kang taolo, phapanyetsano, le tsamaiso.OM/OD ea ofisi e bohareng e ka aroloa ka 'mele ho thepa ea OLT.OWDN e bolela marangrang a mahlo a teng pakeng tsa OLT le ONU, mme e hlokomela kabo ya wavelength ho tloha ho OLT ho ya ho ONU kapa ho tloha ONU ho ya OLT.Khokahano ea 'mele e kenyelletsa fiber e fepang le node e hole e sa sebetseng (PRN: Passive Remote Node).PRN haholo-holo e kenyelletsa grating ea waveguide e sa utloahaleng ea mocheso (AAWG: Athermal Arrayed Waveguide Grating).AAWG ke sesebediswa sa wavelength-sensitive passive optical se etsang optical wavelength multiplexing le demultiplexing mesebetsi.ONU e behiloe sebakeng sa mosebelisi mme ke sesebelisoa sa optical terminal lehlakoreng la mosebelisi.
Ka lehlakoreng le tlaase, maqhubu a mangata a fapaneng a ld1 ... ldn a fetisetsoa ho OWDN ka mor'a ho pheta-pheta ha OM/OD ofising e bohareng, 'me a abeloa ONU e' ngoe le e 'ngoe ho ea ka bolelele bo fapaneng ba maqhubu.Ho ea holimo, li-ONU tsa basebelisi ba fapaneng li ntša li-wavelengths tse fapaneng tsa optical lu1…lun ho OWDN, multiplex ho PRN ea OWDN, ebe li fetisetsa ho OLT.Qetella phetiso ea mats'oao a mahlo a holimo le a tlase.Har'a tsona, leqhubu la maqhubu a tlaase le maqhubu a maqhubu a holimo le holimo li ka sebetsa ka har'a maqhubu a tšoanang kapa maqhubu a fapaneng a maqhubu.