Experimental Investigation of the Performance Limitation of DPSK Systems due to Nonlinear Phase Noise
01 February 2003
It is known that amplitude fluctuations caused by amplified spontaneous emission noise can be converted into phase noise by Kerr nonlinearity, and this nonlinear phase noise can limit the performance of phase-shift-keying transmission systems. In this paper, we experimentally observe and study the performance degradation of differential-phase-shift-keying transmission systems due to nonlinear phase noise.
The results show that the probability density function of nonlinear phase noise deviates from the Gaussian distribution, and this characteristic negates the benefit of a balanced receiver.