Abstract
The phase conjugation properties of self-pumped phase conjugation (SPPC), mutually pumped phase conjugation (MPPC), SPPC and MPPC coexisting are researched in Cu:KNSBN crystal with Q-switched single longitudinal mode YAG pulse laser pumping. The dependence of the reflectivity of phase conjugation on the incidence position and angle are obtained experimentally. The results show the optimal incident parameter exists in photorefractive phase conjugation effect.
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