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Soviet Journal of Quantum Electronics

Transverse structure of a field in nonlinear bistable interferometers. I. Switching waves and steady-state profiles

Nikolai N Rozanov, Viktor E Semenov, Galina V. Khodova

Published Feb 28, 1982• 37 citations
Publisher

Abstract

An analysis is made of switching waves, transverse structure, and field profile hysteresis in nonlinear bistable interferometers. It is shown that a switching wave of zero velocity exists in the hysteresis region and this wave governs the steady-state profile of a beam in an interferometer. The case of oblique incidence of light on an interferometer is considered.

DOI
10.1070/qe1982v012n02abeh005474

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Optics and Spectroscopy•May 1, 2002•1 citation
An analysis is made of switching waves, transverse structure, and field profile hysteresis in nonlinear bistable interferometers. It is shown that a switching wave of zero velocity exists in the hysteresis region and this wave governs the steady-state profile of a beam in an interferometer. The case of oblique incidence of light on an interferometer is considered.
An experimental investigation was made of the transformation of the intensity profile of a spatially confined light beam transmitted by optical bistable devices based on thin-film semiconductor interferometers formed by vacuum evaporation. A hysteresis of the intensity profile and switching waves was observed: these waves represented the process of consecutive transition from one stable state to another in neighboring zones of the interferometer. An experimental investigation was made of the velocity of switching waves in thin-film interferometers and in a model interferometer with a thermal nonlinearity.
Specific features of the light-beam transverse structure transformation in the process of four-wave coupling in the Fabry-Perot interferometer with a resonant nonlinearity under conditions of bifurcation of the symmetry breaking and optical bistability are analyzed. The asymmetric regimes of the interaction, characterized by a difference both in the integrated transmission functions of the nonlinear interferometer for two light beams with equal intensities and in the spatial intensity distribution at the exit of the interferometer, are considered.