Use of Fiber Nonlinearities for Signal Improvement in Optical Transmission Systems

摘要

Optical data signals suffer from signal distortion and noise accumulation during transmission over long distances. In this paper we report on the usage of nonlinear fiber effects for improvement of the signal quality in two examples. On the one hand side we describe our work on the regeneration of phase encoded signals using nonlinear optical loop mirror setups. On the other hand side Raman effect based optical attenuators for the suppression of power transient caused by changes in channel numbers are discussed.