Abstract

The characteristics of stimulated photorefractive scattering self-pumped phase conjugator (SPS-SPPC) in BaTiO₃:Ce crystal without and with an external mirror have been studied and compared. The experimental results show that the SPS-SPPC becomes unstable at a larger incident angle. An additional external mirror can create a stable optical path in the crystal and improve the stability of the SPS-SPPC effectively, and, at the same time, it can enhance the response rate and the phase conjugate reflectivity as well. We offer a reasonable explanation of the experimental results by using a semilinear cavity model.

© 1997 Optical Society of America

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