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

Abstract

Abstract:In order to explore possible asymmetry of nonlinear degradation near zero dispersion, nonlinear propagation of single-channel 10Gbps 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. Keywords: Nonlinear optics fibers, zero dispersion, DSF Classification: Fiber-optic transmission for communications[1] G. P. Agrawal, "Nonlinear Fiber Optics," Academic Press, fifth edition 2013, Chapter5.[2] Dietrich Marcuse, "Single-Channel Operation in Very Long Nonlinear Fibers with Optical Amplifiers at Zero Dispersion," in J. Lightwave Tech., Vol.9, NO.3, March 1991.[3] N. Henmi, Y. Aoki, T. Ogata, T. Saito and S. Nakaya. "A new design arrangement of transmission fiber dispersion for suppressing nonlinear degradation in long-distance optical transmission systems with optical repeater amplifiers," in J.