Theory and applications of four-wave mixing in photorefractive media

M. Cronin-Golomb, B. Fischer, J. White, A. Yariv
1984 IEEE Journal of Quantum Electronics  
The development of a theory of four-wave mixing in photorefractive crystals is described. This theory is solved in the undepleted pumps approximation with linear absorption and without using the undepleted pumps approximation for negligible absorption. Both the transmission and reflection gratings are treated individually. The results are used to analyze several photorefractive phase conjugate mirrors, yielding reflectivities and thresholds. The use of photorefractive crystals as optical
more » ... s as optical distortion correction elements and experimental demonstrations of several of the passive phase conjugate mirrors are described.
doi:10.1109/jqe.1984.1072267 fatcat:vzdzl6ipnnddphyprrnjjde3se