ANALYSIS OF OPTICAL BISTABILITY IN A NONLINEAR DISTRIBUTIVELY COUPLED RESONATOR

We present a study of a nonlinear distributively coupled resonator (NDCR) used as a bistable element. The resonator is an integrated optics implementation of a nonlinear Fabry-Perot with a variable reflectivity mirror. Under certain conditions, the intensity-dependent reflectivity and tuning of the resonator contribute constructively and enhance nonlinear properties of the device. We use numerical methods to optimize NDCR design parameters and show that the critical intensity required for onset of bistability is reduced by 30% relative to a comparable regular Fabry-Perot. Similarly, the minimum required index change is reduced by 10%.