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Optical Engineering

Independent acousto-optic separation of the two wavelengths of a polychromatic light beam
Author(s): Jean-Claude Kastelik; Marc G. Gazalet; F. Haine; Michel Pommeray
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Paper Abstract

A special configuration based on two successive acoustooptic interactions in uniaxial crystals with two noncollinear acoustic waves is presented. It leads to two angularly split wavelengths from a multiline laser beam with independent acousto-optic efficiencies. General expressions of the angular deviation and the spectral bandwidth are derived. Since the application concerns the restitution of colored images, a novel combination of wavelengths using the blue primary at 458 nm is investigated for trichromatic color matching. Numerical computations have been drawn for paratellurite. A practical separator using the slow shear wave in paratellurite is designed, and experimental results for the independent separation of 514- and 458-nm wavelengths of an Ar laser are reported.

Paper Details

Date Published: 1 February 1997
PDF: 7 pages
Opt. Eng. 36(2) doi: 10.1117/1.601224
Published in: Optical Engineering Volume 36, Issue 2
Show Author Affiliations
Jean-Claude Kastelik, Univ. de Valenciennes (France)
Marc G. Gazalet, Univ. de Valenciennes et du Hainaut-Cambresis (France)
F. Haine, Univ. de Valenciennes (France)
Michel Pommeray, Univ. de Valenciennes (France)


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