Fidelity measurement methods for phase conjugation by degenerate four-wave mixing in photorefractive BTO crystals

Mariana Petris; Sorin Tibuleac; Letitia Voicu

doi:10.1117/12.165387

10 December 1993 Fidelity measurement methods for phase conjugation by degenerate four-wave mixing in photorefractive BTO crystals

Mariana Petris, Sorin Tibuleac, Letitia Voicu

Author Affiliations +

Proceedings Volume 2108, International Conference on Holography, Correlation Optics, and Recording Materials; (1993) https://doi.org/10.1117/12.165387
Event: Holography, Correlation Optics, and Recording Materials, 1993, Chernivsti, Ukraine

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.

Citation Download Citation

Mariana Petris, Sorin Tibuleac, and Letitia Voicu "Fidelity measurement methods for phase conjugation by degenerate four-wave mixing in photorefractive BTO crystals", Proc. SPIE 2108, International Conference on Holography, Correlation Optics, and Recording Materials, (10 December 1993); https://doi.org/10.1117/12.165387

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