Abstract

Efficient internal-loop self-pumped phase conjugation is demonstrated in a photorefractive rhodium-doped barium titanate crystal by repetitively pulsed nanosecond pulses from a Q-switched Nd:YAG laser operating at 1.06µm. Phase-conjugate reflectivities as high as 32% are obtained with a response time of 5 min at a repetition rate of 30  Hz. The ability of the phase conjugator to correct severe phase distortions is also demonstrated.

© 1997 Optical Society of America

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