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Modeling of nonlinear bistability with the FDTD method

✍ Scribed by Tomislav Hruskovec; Zhizhang Chen

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
119 KB
Volume
21
Category
Article
ISSN
0895-2477

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✦ Synopsis

Bistability due to the nonlinearity of an optical material has been studied recently and in¨estigated 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 recursi¨e finite-difference formulation for the saturable Kerr properties of the material is deri¨ed, and a physically realizable Fabry᎐Perot etalon is simulated. The numerical results demonstrate the effecti¨eness of the FDTD method for bistability modeling, and thus pro¨ide the foundations for further work and simulation of more complicated and realistic bistable structures.

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