Numerical Simulation of the SPM Penalty in a 10-Gb/s RZ-DPSK System
01 November 2003
The impact of SPM-induced nonlinear phase noise in a 10 Gb/s RZ-DPSK system is studied by numerical simulation. We show that the simple differential-phase-Q method based on the Gaussian approximation for the pahse noise provides a relatively good estimate of the nonlinear penalty.