Moving gratings and optical bias in holography with the photorefractive crystal Bi12SiO20

Zhaoqi Wang; Rulian Fu; Colin M. Cartwright; W. Allan Gillespie

doi:10.1117/12.263104

31 December 1996 Moving gratings and optical bias in holography with the photorefractive crystal Bi₁₂SiO₂₀

Zhaoqi Wang, Rulian Fu, Colin M. Cartwright, W. Allan Gillespie

Proceedings Volume 2866, International Conference on Holography and Optical Information Processing (ICHOIP '96); (1996) https://doi.org/10.1117/12.263104
Event: International Conference on Holography and Optical Information Processing, 1996, Nanjing, China

Abstract

Moving gratings at large fringe modulation and optical bias in photorefractive crystal Bi₁₂SiO₂₀ are investigated. With two-wave mixing architecture, the optimum fringe velocity and the enhancement of the diffraction efficiency exhibit strong nonlinear dependence on the fringe modulations. With four-wave mixing architecture, not only these nonlinear effects still exist but also the optimum pump beam ratio is totally different from a stationary grating. It is also found applying optical bias into moving gratings that the diffraction efficiency exhibits unexpected behavior. Experimental results of these nonlinear effects are presented.

Citation Download Citation

Zhaoqi Wang, Rulian Fu, Colin M. Cartwright, and W. Allan Gillespie "Moving gratings and optical bias in holography with the photorefractive crystal Bi₁₂SiO₂₀", Proc. SPIE 2866, International Conference on Holography and Optical Information Processing (ICHOIP '96), (31 December 1996); https://doi.org/10.1117/12.263104

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