Abstract

Ikeda and Mizuno¹ first indicated theoretically that frustration instability and frequency locking exist in optical bistability with two delayed feedback signals. Zhang and Dai² have experimentally observed the instability in a hybrid liquid crystal optical bistable device and also observed frequency locking, jumps between locking steps, hysteresis, and a beating pattern. In this paper we discuss the influence of feedback strength on the oscillation patterns studied by means of power spectra and phase portrait. The hybrid optical bistable device is described by the delayed differential equation:

© 1987 Optical Society of America