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Proceedings Paper

Theoretical study of feedback-controlled photorefractive beam-coupling dynamics
Author(s): E. V. Podivilov; Boris I. Sturman; Vladimir Ya. Gayvoronsky; Michail S. Brodyn; Klaus H. Ringhofer; Vladimir P. Kamenov
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Paper Abstract

Theoretically we investigate the operation of a novel nonlinear system, feedback controlled photorefractive beam coupling. It is shown that the feedback conditions used earlier ((pi) /2 phase shift between the diffracted and transmitted beam components) are satisfactory only during a relatively short initial stage of development. We have generalized these conditions by taking into account the inertia inherent any real feedback loop. The inertial feedback conditions ensure the permanent operation of the nonlinear system and lead to a variety of periodic and quasi-periodic regimes. We investigate the distinctive features of these regimes and transitions between them for moderately thick crystals.

Paper Details

Date Published: 30 May 2001
PDF: 14 pages
Proc. SPIE 4418, Eighth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals, 44180R (30 May 2001); doi: 10.1117/12.428312
Show Author Affiliations
E. V. Podivilov, Institute of Automation and Electrometry (Russia)
Boris I. Sturman, Institute of Automation and Electrometry (Russia)
Vladimir Ya. Gayvoronsky, Institute of Physics (Ukraine)
Michail S. Brodyn, Institute of Physics (Ukraine)
Klaus H. Ringhofer, Univ. Osnabrueck (Germany)
Vladimir P. Kamenov, Univ. Osnabrueck (Germany)

Published in SPIE Proceedings Vol. 4418:
Eighth International Conference on Nonlinear Optics of Liquid and Photorefractive Crystals
Gertruda V. Klimusheva; Andrey G. Iljin, Editor(s)

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