Fidelity evaluation of the conjugated wavefront in photorefractive crystals using direct spatial phase demodulation of optical interferograms

Valentin I. Vlad; Adrian Petris; Angela Jianu

doi:10.1117/12.312801

2 July 1998 Fidelity evaluation of the conjugated wavefront in photorefractive crystals using direct spatial phase demodulation of optical interferograms

Valentin I. Vlad, Adrian Petris, Angela Jianu

Author Affiliations +

Proceedings Volume 3405, ROMOPTO '97: Fifth Conference on Optics; (1998) https://doi.org/10.1117/12.312801
Event: ROMOPTO '97: Fifth Conference on Optics, 1997, Bucharest, Romania

Abstract

Conjugated wavefront fidelity has been evaluated using an interferometer with a phase conjugate mirror and fringe pattern computer processing. The quantitative interpretation of the fringe patterns is performed using direct spatial phase reconstruction methods (in the space and Fourier domain). A set of algorithms for fast and accurate phase evaluation, by fringe pattern processing, were derived. The result of optical interferograms evaluation appears in terms of different phase representations. These methods have been verified by studies of the optical phase conjugation fidelity in photorefractive crystals.

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Valentin I. Vlad, Adrian Petris, and Angela Jianu "Fidelity evaluation of the conjugated wavefront in photorefractive crystals using direct spatial phase demodulation of optical interferograms", Proc. SPIE 3405, ROMOPTO '97: Fifth Conference on Optics, (2 July 1998); https://doi.org/10.1117/12.312801

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