Phase noise reduction of DPSK signals based on four-wave mixing in a fiber

Abstract

Abstract:

Differential phase-shift keying (DPSK)format has received attention for long-haul optical fiber communication systems, due to its advantages of improvement in receiver sensitivity, high spectral efficiency and robustness to nonlinear effects. Phase noise and nonlinear phase noise are the main factors impacting the performance of DPSK system . we monitor and reduce phase noise by four-wave mixing（FWM）in a fiber experimentally. The results show that the products of FWM can monitor the value of phase noise , DPSK signals performance can be improved by a amplitude limiter in a fiber based on saturation FWM through reducing nonlinear phase noise .This result is very important for high-speed all optical communication.

Key words: nonlinear optics, phase noise, DPSK, nonlinear phase noise

CLC Number:

TN929.11

ZHOU Zhen , XU Ming , PU Xiao. Phase noise reduction of DPSK signals based on four-wave mixing in a fiber[J]. J4, 2011, 28(1): 115-121.

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Phase noise reduction of DPSK signals based on four-wave mixing in a fiber

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