I-WDM PON yi-point-to-point passive optical network isebenzisa i-wavelength division multiplexing technology.Oko kukuthi, kwifiber efanayo, inani leemitha ezisetyenziswa kumacala omabini lingaphezulu kwe-3, kwaye ukusetyenziswa kwe-wavelength division multiplexing iteknoloji ukufezekisa ukufikelela kwe-uplink kunokubonelela nge-bandwidth enkulu yokusebenza ngexabiso eliphantsi, elilukhokelo lophuhliso olubalulekileyo ukufikelela kwifiber yeOptical kwixesha elizayo.Inkqubo ye-PON ye-WDM eqhelekileyo iqulethwe ngamacandelo amathathu: I-Optical Line Terminal (OLT), i-Optical Wavelength Distribution Network (OWDN) kunye ne-Optical Network Unit (ONU: i-Optical Network Unit), njengoko kuboniswe kuMzobo 1. I-OLT yizixhobo zeofisi ephakathi, kuquka i-optical wavelength division multiplexer/demultiplexer (OM/OD).Ngokubanzi, inemisebenzi efana nolawulo, utshintshiselwano, kunye nolawulo.I-OM/OD yeofisi ephakathi inokwahlulwa ngokwasemzimbeni kwisixhobo se-OLT.I-OWDN ibhekisa kuthungelwano lwamehlo olubekwe phakathi kwe OLT kunye ne ONU, kwaye iqonda unikezelo lwamaza obude ukusuka kwi OLT ukuya kwi ONU okanye ukusuka kwi ONU ukuya kwi OLT.Ikhonkco lomzimba libandakanya i-fiber feeder kunye ne-passive node ekude (PRN: i-Passive Remote Node).I-PRN ikakhulu ibandakanya i-thermal insensitive arrayed waveguide grating (AAWG: I-Athermal Arrayed Waveguide Grating).I-AAWG sisixhobo esibonakalayo sobude obungasivayo esenza i-optical wavelength multiplexing kunye nemisebenzi ye-demultiplexing.I-ONU ibekwe kwi-terminal yomsebenzisi kwaye sisixhobo se-terminal esibonakalayo kwicala lomsebenzisi.
Kwisalathiso esisezantsi, amaza ahlukeneyo ahlukeneyo ld1 ... ldn athunyelwa kwi-OWDN emva kokuphindaphinda kwe-OM / OD ye-ofisi ephakathi, kwaye yabelwe i-ONU nganye ngokobude obuhlukeneyo.Kwicala elingasentla, ii-ONUs zabasebenzisi abahlukeneyo zikhupha ubude bamaza okukhanya ahlukeneyo lu1…lun ukuya kwi-OWDN, i-multiplex kwi-PRN ye-OWDN, emva koko idluliselwe kwi-OLT.Gqibezela ukuhanjiswa kwemiqondiso yamehlo phezulu nasezantsi.Phakathi kwazo, i-wavelength esezantsi yomlambo kunye ne-wavelength lun enyukayo inokusebenza kwi-waveband enye okanye amaza amaza ahlukeneyo.