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Acta Physica Polonica A

Carrier-Influenced Bistable Behaviour in Ring Cavity Configuration

Nguyen Ba An, Dan Trung Nguyen, Hoang Xuan Nguyen

Published Apr 1, 1992• 1 citation
Publisher

Abstract

Bistable output-input light characteristics in the exciton spectral region have been examined in a ring cavity configuration taking íto account the influence of the presence of free carriers in the cavity as well as of the density-dependence of the exciton damping.The resulting modifications could serve as a means to optimize the optical bistable device operation.

DOI
10.12693/aphyspola.81.517

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Bistable output-input light characteristics in the exciton spectral region have been examined in a ring cavity configuration taking íto account the influence of the presence of free carriers in the cavity as well as of the density-dependence of the exciton damping.The resulting modifications could serve as a means to optimize the optical bistable device operation.
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Absorptive, dispersive, and diffractive effects are studied in a nonlinear ring-cavity configuration containing an intrinsically bistable medium modeled generically by a nonlinear oscillator. The output intensity is shown to exhibit steady-state and periodic characteristics for constant input intensity, but no chaotic solutions are found. We find that the plane-wave analysis is inconsistent with the inclusion of diffraction effects and that periodic output characteristics are affected even for Fresnel numbers of order 1000. Our results are contrasted with previously reported experimental and theoretical work.