I-WDM PON iyinethiwekhi ye-point-to-point passive passive esebenzisa ubuchwepheshe be-wavelength division multiplexing. Okusho ukuthi, ku-fiber efanayo, inani lamaza amaza asetshenziswa kuzo zombili izinkomba lingaphezu kuka-3, futhi ukusetshenziswa kobuchwepheshe be-wavelength division multiplexing ukuze kuzuzwe ukufinyelela kwe-uplink kunganikeza umkhawulokudonsa omkhulu wokusebenza ngezindleko eziphansi, okuyisiqondiso esibalulekile sokuthuthukiswa ukufinyelela kwe-Optical fiber esikhathini esizayo. Uhlelo olujwayelekile lwe-WDM PON luqukethe izingxenye ezintathu: Itheminali Yomugqa Wokubona (OLT), i-Optical Wavelength Distribution Network (OWDN) kanye ne-Optical Network Unit (I-ONU: Iyunithi yenethiwekhi ye-Optical), njengoba kukhonjisiwe kuMfanekiso 1.OLTiyimishini yehhovisi emaphakathi, okuhlanganisa i-optical wavelength division multiplexer/demultiplexer (OM/OD). Ngokuvamile, inemisebenzi efana nokulawula, ukushintshanisa, nokuphatha. I-OM/OD yehhovisi elimaphakathi ingahlukaniswa ngokoqobo ne-OLTimishini. I-OWDN ibhekisela kunethiwekhi yokubona etholakala phakathi kweOLTkanye neI-ONU, futhi ibona ukusatshalaliswa kwe-wavelength kusuka ku-OLTkweI-ONUnoma kusuka kuI-ONUkweOLT. Isixhumanisi esibonakalayo sifaka i-fiber feeder kanye ne-passive node eyihlane (PRN: Passive Remote Node). I-PRN ikakhulukazi ihlanganisa igridi ye-waveguide engezwani ne-thermal (AAWG: I-Athermal Arrayed Waveguide Grating). I-AAWG iyidivayisi ye-wavelength-sensitive passive passive device eyenza i-optical wavelength multiplexing kanye nemisebenzi ye-demultiplexing. II-ONUibekwe kutheminali yomsebenzisi futhi iyisisetshenziswa esibonakalayo esisohlangothini lomsebenzisi.
Ngaphansi komfula, amaza amaza ahlukene ld1…ldn adluliselwa ku-OWDN ngemva kokuphindaphinda kwe-OM/OD kwehhovisi elimaphakathi, futhi abelwe ngalinye.I-ONUngokuya ngamaza ahlukene. Ekuqondeni komfula, abasebenzisi abahlukileAma-ONUikhipha amaza okukhanya ahlukene lu1…lun ku-OWDN, i-multiplex ku-PRN ye-OWDN, bese idlulisela kuOLT. Qedela ukudluliswa komfula nokwehla nomfula kwamasignali okubona. Phakathi kwazo, i-downstream wavelength ldn kanye ne-wavelength lun ekhuphukayo ingasebenza ngebhande legagasi elifanayo noma amabhande amaza ahlukene.