Rayleigh backscattering noise in single-fiber loopback duplex WDM-PON architecture

Abstract

This paper investigated the impact of Rayleigh backscattering (RB) noise in the proposed wavelength-division-multiplexed (WDM) single-fiber loopback access network. RB noise’s impacts on the downstream and upstream service were discussed in details. It was found that the receiver sensitivity was less sensitive when the seeding-light power was below -12.6 dBm. And for the uplink RB noise, a higher reflective semiconductor optical amplifier (RSOA)’s bias current results in lower receiver sensitivity.

Keywords

passive optical network (PON) / reflective semiconductor optical amplifier (RSOA) / Rayleigh backscattering (RB)

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Acknowledgements

This work was partially supported by the National Natural Science Foundation of China (Grant No. 61007044), the Fundamental Research Funds for the Central Universities (HUST 2011TS008), and the China Postdoctoral Science Foundation (Nos. 20090451044 and 201104466).

RIGHTS & PERMISSIONS

2014 Higher Education Press and Springer-Verlag Berlin Heidelberg