Nonlinear propagation characteristics of 10 Gbps optical signal at and near zero dispersion of dispersion-shifted optical fiber

摘要

In order to explore possible asymmetry of nonlinear degradation near zero dispersion, nonlinear propagation of single-channel 10 Gbps signal at and near zero dispersion wavelength of dispersion-shifted optical fiber (DSF) is comprehensively investigated in terms of signal power and wavelength as well as transmission distance. Inherent nonlinear degradation near zero dispersion appears to be symmetric in terms of wavelength despite that Modulation Instability (MI) gain should vanish in normal dispersion with deviation from zero dispersion.