Averaging of phase noise in PSK signals by an opto-electrical feed-forward circuit

作者：Inoue K^*; Ohta M

来源：Optical Fiber Technology, 2013, 19(5): 514-517.

DOI：10.1016/j.yofte.2013.07.004

• Phase-shift keying
• Noise reduction
• Phase noise
• Feed-forward control

This paper proposes an opto-electrical feed-forward circuit that reduces phase noise in binary PSK signals by averaging the noise. Random and independent phase noise is averaged over several bit slots by externally modulating a phase-fluctuating PSK signal with feed-forward signal obtained from signal processing of the outputs of delay interferometers. The simulation results demonstrate a reduction in the phase noise.

• 出版日期2013-10