# Numerical simulation of the SPM penalty in a 10-Gb/s RZ-DPSK system

Article (PDF Available)inIEEE Photonics Technology Letters 15(11):1636 - 1638 · December 2003with88 Reads
DOI: 10.1109/LPT.2003.818664 · Source: IEEE Xplore
• 33.3 · Indiana University-Purdue University Indianapolis
• 41.12 · Alcatel Lucent
• 40.61 · Cornell University
Abstract
The impact of self-phase modulation-induced nonlinear phase noise in a 10-Gb/s return-to-zero differential phase-shift keying system is studied by numerical simulation. We show that the simple differential phase Q method based on the Gaussian approximation for the phase noise provides a relatively good estimate of the nonlinear penalty.