PHOTOREFRACTIVE PHASE-CONJUGATE REFLECTIVITY ENHANCEMENT DUE TO LINEAR ABSORPTION

The undepleted-pump photorefractive four-wave mixing equations for the case of orthogonally polarized pumps are solved taking into account t he linear absorption of the medium. A phenomenon of the enhancement of the phase conjugate reflectivity due to linear absorption is found to occur for a certain range of the phase conjugator parameters. This ph enomenon is shown to occur as a consequence of the existence of the se lf-oscillatory modes in the presence of linear absorption.