LIMITATIONS OF PHASE-CONJUGATE REPLAY IN VOLUME-HOLOGRAPHIC PHASE-DISTURBING MEDIA

We examine the consequences of permanent phase distortions on the repl ay of transmission volume holograms with a phase-conjugated reference wave. In the absence of Bragg degeneracies and significant Bragg misma tch, for negligible dispersion in the spatial frequency response and f or negligible variation in obliquity, phase-conjugated reference waves compensate for the effects of phase distortions and permit cross-talk -free multiplexing by using orthogonal reference waves. Spatial freque ncy dispersion, however, is a source of image distortion and cross tal k.