A 80 km reach fully passive WDM-PON based on reflective ONUs

Marco Presi, Roberto Proietti, Kamau Prince, Giampiero Contestabile, Ernesto Ciaramella

Research output: Contribution to journalJournal articleResearchpeer-review


We propose a novel line coding combination (Inverse RZ coding in downlink and RZ in uplink) that extends the reach of WDM Passive Optical Networks based on Reflective SOAs with no in-line amplification. We achieved full downstream remodulation even when feeding the reflective SOA with power levels as low as -35dBm, thus increasing the system power budget. We experimentally assessed this scheme for a fully passive, full-duplex and symmetrical 1.25Gb/s WDM-PON over a 80km G.652 feeder.
Original languageEnglish
JournalOptics Express
Issue number23
Pages (from-to)19043-19048
Publication statusPublished - 2008


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