We analyze the stability of two recently demonstrated photorefractive resonator circuits. The analysis is based on single-mode models of the multimode circuits. The flip-flop, which consists of two competitively coupled rings, is considered in the two limits where the rings share or have separate gain volumes. Both configurations are found to be stable for typical experimental conditions. The feature extractor consists of two rings with a shared gain volume. It is found to be unconditionally stable. The results are discussed in the context of the experimental demonstrations.
© 1995 Optical Society of America
A. A. Zozulya, M. Saffman, and D. Z. Anderson, "Stability analysis of two photorefractive ring resonator circuits: the flip-flop and the feature extractor," J. Opt. Soc. Am. B 12, 1036-1047 (1995)