Frequency locking in optical bistability with competing interactions

Abstract
We study the unstable behavior of a liquid-crystal hybrid bistable device with two time delays in the feedback mechanism. We report the observation of frustrated instability, frequency locking, and hysteresis on varying the control parameters. The results of our experiments are in agreement with the theoretical analysis presented by Ikeda and Mizuno [Phys. Rev. Lett. 53, (1984)].