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Proceedings Paper

Acousto-optic Bragg polarization separator based on single or dual acoustic frequency carriers
Author(s): Hichem Benaissa; Jean-Claude Kastelik; Samuel Dupont
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Paper Abstract

In this paper, we present a bifrequency acousto-optic polarization splitter (BAOPS) used to select independently the two polarization states of an arbitrary polarized input beam with two acoustic carriers. We make use of a dual frequency anisotropic interaction in the crystal, two acoustic waves diffract the optical beam, each frequency being tuned for interaction with only one of the beam polarizations. We explain how this double interaction is made possible by a proper cut of the paratellurite crystal and for a chosen launching angle of the input beam. In a first part we derive the theory underlying the acousto-optic interaction and the design of the paratellurite device. Then we describe our experimental setup, show some experimental results and discuss them.

Paper Details

Date Published: 22 April 2006
PDF: 7 pages
Proc. SPIE 6189, Optical Sensing II, 618921 (22 April 2006); doi: 10.1117/12.662759
Show Author Affiliations
Hichem Benaissa, IEMN, CNRS, Univ. de Valenciennes et du Hainaut-Cambrésis (France)
Jean-Claude Kastelik, IEMN, CNRS, Univ. de Valenciennes et du Hainaut-Cambrésis (France)
Samuel Dupont, IEMN, CNRS, Univ. de Valenciennes et du Hainaut-Cambrésis (France)

Published in SPIE Proceedings Vol. 6189:
Optical Sensing II
Brian Culshaw; Anna G. Mignani; Hartmut Bartelt; Leszek R. Jaroszewicz, Editor(s)

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