The spatiotemporal dynamics of a unidirectional ring oscillator with photorefractive gain are studied numerically. Some interesting spatiotemporal phenomena observed in the experiments were obtained even though intermodal gratings were neglected in the weak-field limit. These phenomena include cooperative frequency locking, spatiotemporal periodic behavior, and spatiotemporal chaos. Moreover, our results show that the spatiotemporal chaos that appears in the photorefractive oscillator can be induced by intermittence.
© 1998 Optical Society of America
Jun Zhuang and Weihan Tan, "Cooperative frequency locking and spatiotemporal chaos in a photorefractive oscillator," J. Opt. Soc. Am. B 15, 2249-2254 (1998)