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International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)

Coupled non-linear microresonator systems: Modelling and applications

Yannick Dumeige, Patrice Féron

Published Sep 1, 2011• 0 citations
Publisher

Abstract

A simple model is used to simulate the dynamic properties of coupled nonlinear microcavities. The model has been checked using a nonlinear finite difference time domain code. We show that two coupled nonlinear cavities with a Kerr nonlinearity can have multistable or self pulsing behaviors. Finally, an application as a positive pulse all-optical memory is proposed.

DOI
10.1109/nusod.2011.6041205

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Bistability due to the nonlinearity of an optical material has been studied recently and investigated for its potential high-speed all-optical signal-processing applications. As a result, accurate modeling techniques are required for design purposes. In this paper, the finite-difference time-domain (FDTD) method is applied to the modeling of optical bistability caused by the saturable Kerr effect of a GaAs–GaAlAs MQW-like material. A recursive finite-difference formulation for the saturable Kerr properties of the material is derived, and a physically realizable Fabry–Perot etalon is simulated. The numerical results demonstrate the effectiveness of the FDTD method for bistability modeling, and thus provide the foundations for further work and simulation of more complicated and realistic bistable structures. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 21: 165–168, 1999.