TEMPORAL BEHAVIOR OF PHASE-CONJUGATE OUTPUTS IN A COHERENTLY INDUCED PHASE CONJUGATOR

The temporal behavior of the bidirectional phase-conjugate outputs fro m a coherently induced phase conjugator has been observed on a Cu-dope d barium strontium potassium sodium niobate crystal. In our experiment , the phase-conjugate outputs of two incident beams vary smoothly with time if the beam ratio is large. When the beam ratio is reduced, howe ver, each phase-conjugate output will experience a temporal fluctuatio n. The phase-conjugate output characteristic is found to be dependent on the beam ratio of the two input beams, their positions, their beam- path-length difference and sometimes the input order of the two beams. We present a model of multi-region-interaction to explain the operati on of the device and the experimental results in this paper.