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

• DOI: 10.3788/col201210.070608
• Publication Date: 2012-06-11T03:35:32Z
• Authors: Lei Liu Lei Liu; Min Zhang Min Zhang; Mingtao Liu Mingt...; Xiaopin Zhang Xia...
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

Pulse position modulation (PPM) is introduced downstream of the reflective semiconductor optical amplifier (RSOA)-based single-fiber full-duplex bidirectional wavelength division multiplex passive network (WDM PON) to suppress interference brought by remodulation effect in RSOA, Rayleigh backscattering, and reflection connection devices.In addition, because powerefficient characteristic PPM-encoded signals, power budget shows clear improvement.As experimental tests indicate, with ∼6 dB extinction ratio (ER) signal, receiving sensitivity channel ∼2.6 ∼3 higher than that NRZ (Non-return zero)-encoded downlink uplink, respectively.