EFFECTS OF LINEAR ABSORPTION ON THE STEADY-STATE BEHAVIOR OF A PHOTOREFRACTIVE PHASE-CONJUGATE MIRROR

A photorefractive phase-conjugate mirror with linear absorption is exa mined. An objective of this study is to identify possible effects of a bsorption on the self-oscillation conditions of the mirror and the pro perties of the excited conjugate wave. It has been found that self-osc illation is still possible in the presence of absorption. However, the coupling coefficient required for self-oscillation must increase in m agnitude with increasing absorption coefficient to counteract the depr essing effects of absorption. A consequence of self-oscillation in the presence of absorption is enhancement of the mirror reflectivity. A p arametric study of the absorption-enhanced mirror is presented.