We present both steady-state and dynamical studies of multigrating competition effects in photorefractive mutually pumped phase conjugation. It is shown that in the case of a single interaction region the conical ring, resulting from the scattering by multiple gratings, will collapse to the plane-wave component that has the highest gain. The coupling between the scattered beams is also considered. Both theoretical and experimental results are presented and discussed.
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He et al. (1992) studied this question.
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