We present a theoretical model of photorefractive parametric oscillation that is capable of explaining the occurrence of so-called longitudinal, degenerate, and transversal parametric oscillation in photorefractive crystals. It appears that transversal parametric oscillation occurs in a parameter region that, until now, has been overlooked in the literature. Moreover, we present experiments on the different parametric processes that qualitatively verify our theoretical results.
© 1997 Optical Society of America
Henrik C. Pedersen and Per Michael Johansen, "Longitudinal, degenerate, and transversal photorefractive parametric oscillation: theory and experiment," J. Opt. Soc. Am. B 14, 1418-1427 (1997)