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Proceedings Paper

Fidelity measurement methods for phase conjugation by degenerate four-wave mixing in photorefractive BTO crystals
Author(s): Mariana Petris; Sorin Tibuleac; Letitia Voicu
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Paper Abstract

We present new, easy to use methods of measuring the fidelity of phase conjugated beams employing a classical system for image acquisition and processing, coupled to a personal computer. Two methods are based on intensity distribution changes measurements and the third is an interferometric evaluation of the wavefront reconstruction. These methods are applied in phase conjugation fidelity studies in a degenerate four wave mixing experiment using a He-Ne laser and a Bi12TiO20 (BTO) photorefractive crystal. A comparison between the proposed methods, and also with other techniques currently used for phase conjugation fidelity studies, is made.

Paper Details

Date Published: 10 December 1993
PDF: 8 pages
Proc. SPIE 2108, International Conference on Holography, Correlation Optics, and Recording Materials, (10 December 1993); doi: 10.1117/12.165387
Show Author Affiliations
Mariana Petris, Institute of Atomic Physics (Romania)
Sorin Tibuleac, Institute of Atomic Physics (Romania)
Letitia Voicu, Institute of Atomic Physics (Romania)

Published in SPIE Proceedings Vol. 2108:
International Conference on Holography, Correlation Optics, and Recording Materials
Oleg V. Angelsky, Editor(s)

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