A novel method for the exact solution of four-wave mixing in photorefractive media is presented. This method allows us to treat exactly the effects of nonequal angles of incidence, different refractive-index modulation of interacting waves, and external incoherent illumination of the photorefractive crystal.
© 1988 Optical Society of America
Aleksander Bledowski and Wieslaw Krolikowski, "Exact solution of degenerate four-wave mixing in photorefractive media," Opt. Lett. 13, 146-148 (1988)