Stabilization of unstable steady states in photorefractive phase conjugators

摘要

A semiderivative method, which consists of illumination of a photorefractive medium with a weak beam that is incoherent with the interacting beams, is described for stabilization of unstable steady states in photorefractive phase conjugators, such as an externally pumped four-wave mixer, a semilinear self-pumped phase conjugator, and a double phase conjugator. (C) 2000 Optical Society of America. [References: 19]