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Proceedings Paper

Moving gratings and optical bias in holography with the photorefractive crystal Bi12SiO20
Author(s): Zhaoqi Wang; Rulian Fu; Colin M. Cartwright; W. Allan Gillespie
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Paper 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.

Paper Details

Date Published: 31 December 1996
PDF: 4 pages
Proc. SPIE 2866, International Conference on Holography and Optical Information Processing (ICHOIP '96), (31 December 1996); doi: 10.1117/12.263104
Show Author Affiliations
Zhaoqi Wang, Nankai Univ. (China)
Rulian Fu, Nankai Univ. (China)
Colin M. Cartwright, Univ. of Abertay Dundee (United Kingdom)
W. Allan Gillespie, Univ. of Abertay Dundee (United Kingdom)


Published in SPIE Proceedings Vol. 2866:
International Conference on Holography and Optical Information Processing (ICHOIP '96)
Guoguang Mu; Guofan Jin; Glenn T. Sincerbox, Editor(s)

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