Application of moving gratings in BSO to optical pattern recognition

Guoguang Mu; Zhaoqi Wang

doi:10.1117/12.255481

25 October 1996 Application of moving gratings in BSO to optical pattern recognition

Guoguang Mu, Zhaoqi Wang

Proceedings Volume 2849, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications II; (1996) https://doi.org/10.1117/12.255481
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

Moving grating technique is applied to dynamic holographic recording to overcome the difficulties of the fluctuation of the diffraction efficiency and the funning effect in photorefractive crystal BSO. Various nonlinear effects caused by moving gratings at large fringe modulations are experimentally investigated. It is shown in the application of optical pattern recognition that the probability of an error detection is reduced and the signal-to-noise ratio is considerably enhanced. Experimental results are presented.

Citation Download Citation

Guoguang Mu and Zhaoqi Wang "Application of moving gratings in BSO to optical pattern recognition", Proc. SPIE 2849, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications II, (25 October 1996); https://doi.org/10.1117/12.255481

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