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.
© 2000 Optical Society of America
(190.3100) Nonlinear optics : Instabilities and chaos
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing
(190.5040) Nonlinear optics : Phase conjugation
(190.5330) Nonlinear optics : Photorefractive optics
Ping Xie, Peng-Ye Wang, and Jian-Hua Dai, "Stabilization of unstable steady states in photorefractive phase conjugators," J. Opt. Soc. Am. B 17, 1004-1007 (2000)