Polarization-Insensitive Optical Spectral Inversion Using Four-Wave Mixing in a Dispersion-Shifted Fiber
Author: Zhang, X.
Source: Optical Fiber Technology, Volume 4, Number 1, January 1998 , pp. 91-116(26)
Publisher: Academic Press
Abstract:A theoretical analysis of spectral inversion using a nondegenerate four-wave mixing wave in a dispersion-shifted fiber with two orthogonally polarized pumps is given. The configuration using two orthogonally polarized pumps was considered as polarization-insensitive spectral inversion. Our analysis will show that the spectral inversion still presents a polarization dependence up to several dB even when polarization-mode dispersion of conversion fiber is ignored. The polarization dependence is mainly induced by two factors: asymmetrical pump depletion and polarization-sensitive crosstalk four-wave mixing waves. The chirp characteristics of spectral-inverted signal are also given. The chirp may present a polarization dependence, depending on input signal power. Copyright 1998 Academic Press.
Document Type: Research Article
Affiliations: Munspelsgatan 12, Goteborg, 421 46, Sweden
Publication date: January 1998