Suppression of dynamic distortions by four-wave mixing in a photorefractive crystal

A numerical simulation is reported of a one-pass system for suppression of dynamic distortions, which is based on four-wave mixing of optical fields in photorefractive crystals. A study is made of the reaction of such a system to various types of noise and it is shown that the system efficiency can be enhanced significantly by mixing an additional coherent field to a distorted signal.