High-fringe-contrast effects in moving-fringe experiments with InP:Fe photoreractive crystals

Valerie Dupray; Marc Brunel; Cafer Ozkul

doi:10.1117/12.373660

29 December 1999 High-fringe-contrast effects in moving-fringe experiments with InP:Fe photoreractive crystals

Valerie Dupray, Marc Brunel, Cafer Ozkul

Proceedings Volume 4016, Photonics, Devices, and Systems; (1999) https://doi.org/10.1117/12.373660
Event: Photonics Prague '99, 1999, Prague, Czech Republic

Abstract

Two-wave mixing in photorefractive InP:Fe crystals is revisited considering an externally applied dc field combined with the moving grating technique. We show that the disagreement previously observed in the literature between theory and experiments finds an explanation in the influence of both the absorption along the propagation axis and the nonlinearities occurring at relatively large fringe modulations. A finite difference method is used to demonstrate the dependence of these nonlinearities on the average incident intensity.

Citation Download Citation

Valerie Dupray, Marc Brunel, and Cafer Ozkul "High-fringe-contrast effects in moving-fringe experiments with InP:Fe photoreractive crystals", Proc. SPIE 4016, Photonics, Devices, and Systems, (29 December 1999); https://doi.org/10.1117/12.373660

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