Experimental demonstration of RSOA-based WDM PON with PPM-encoded downstream signals | Zendy

Lei Liu Lei Liu | Zendy; Min Zhang | Zendy; Mingtao Liu | Zendy; Zhang Xiaopin | Zendy

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Experimental demonstration of RSOA-based WDM PON with PPM-encoded downstream signals

Author(s) -

Lei Liu Lei Liu,

Min Zhang,

Mingtao Liu,

Zhang Xiaopin

Publication year - 2012

Publication title -

chinese optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.617

H-Index - 37

ISSN - 1671-7694

DOI - 10.3788/col201210.070608

Subject(s) - wavelength division multiplexing , downstream (manufacturing) , optics , passive optical network , computer science , physics , wavelength , operations management , economics

Pulse position modulation(PPM) is introduced downstream of the reflective semiconductor optical amplifier (RSOA)-based single-fiber full-duplex bidirectional wavelength division multiplex passive optical network(WDM PON) to suppress the interference brought by the remodulation effect in the RSOA, Rayleigh backscattering,and reflection of the connection devices.In addition,because of the powerefficient characteristic of the PPM-encoded signals,the power budget shows clear improvement.As the experimental tests indicate,with6 dB extinction ratio(ER) in the downstream signal,the receiving sensitivity of the PPM-encoded channel is2.6 and3 dB higher than that of the NRZ(Non-return to zero)-encoded channel in the downlink and uplink,respectively.

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