Abstract
The photorefractive (PR) degenerate four-wave mixing (DFWM) of polarized electromagnetic waves in cubic isotropic crystals is considered. Effects of cross-polarization coupling have been investigated in the case of DFWM in absorbing, semi-insulating compound semiconductor PR crystals in reflection geometry. Considering the pump beam depletion, nonlinear coupled wave equations are obtained and have been solved numerically by a shooting method. Numerical results obtained from computer calculations are presented in graphical form. It is observed that the intensity of a particular polarization component can be appreciably increased by a proper choice of input beam polarization angle, crystal orientation, and crystal thickness.
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