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Proceedings Paper

Diffraction properties of photorefractive gratings
Author(s): Ragini Saxena
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Paper Abstract

Volume phase gratings in photorefractive crystals have nonuniform amplitude and phase due to the energy exchanged by the writing beams within the material. Analytic expression is obtained for the diffraction efficiency of a weak reading beam that does not perturb the grating and has a different polarization from the write beams. For a read beam of arbitrary intensity, the diffraction efficiency is a nonlinear function of the read beam intensity and is nonreciprocal with respect to readout from the two input ports. These properties of photorefractive gratings are studied for arbitrary phase shifts of the index grating from the intensity pattern.

Paper Details

Date Published: 28 April 1994
PDF: 26 pages
Proc. SPIE 10270, Photorefractive Materials, Effects, and Applications: A Critical Review, 1027004 (28 April 1994); doi: 10.1117/12.178626
Show Author Affiliations
Ragini Saxena, Rockwell International Science Ctr. (United States)

Published in SPIE Proceedings Vol. 10270:
Photorefractive Materials, Effects, and Applications: A Critical Review
Pochi Yeh; Claire Gu, Editor(s)

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