Bandwidth efficient bidirectional 5 Gb/s overlapped-SCM WDM PON with electronic equalization and forward-error correction | Zendy

Jonathan M. Buset | Zendy; Ziad A. El-Sahn | Zendy; David V. Plant | Zendy

Open Access

Bandwidth efficient bidirectional 5 Gb/s overlapped-SCM WDM PON with electronic equalization and forward-error correction

Author(s) -

Jonathan M. Buset,

Ziad A. El-Sahn,

David V. Plant

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.014428

Subject(s) - computer science , subcarrier multiplexing , spectral efficiency , wavelength division multiplexing , transceiver , electronic engineering , bandwidth (computing) , transmitter , forward error correction , subcarrier , bit error rate , orthogonal frequency division multiplexing , telecommunications , optics , wireless , engineering , physics , channel (broadcasting) , decoding methods , wavelength

We demonstrate an improved overlapped-subcarrier multiplexed (O-SCM) WDM PON architecture transmitting over a single feeder using cost sensitive intensity modulation/direct detection transceivers, data re-modulation and simple electronics. Incorporating electronic equalization and Reed-Solomon forward-error correction codes helps to overcome the bandwidth limitation of a remotely seeded reflective semiconductor optical amplifier (RSOA)-based ONU transmitter. The O-SCM architecture yields greater spectral efficiency and higher bit rates than many other SCM techniques while maintaining resilience to upstream impairments. We demonstrate full-duplex 5 Gb/s transmission over 20 km and analyze BER performance as a function of transmitted and received power. The architecture provides flexibility to network operators by relaxing common design constraints and enabling full-duplex operation at BER ∼ 10(-10) over a wide range of OLT launch powers from 3.5 to 8 dBm.

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