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Proceedings Paper

Nonlinear optoelectronic feedback system
Author(s): Yoshio Hayasaki; Yuuki Tamura; Shusaku Hara; Hirotsugu Yamamoto; Nobuo Nishida
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Paper Abstract

Experimental investigations of generations and processing of optical patterns in a nonlinear optoelectronic circuits composed of an electronically addressed spatial light modulator and a CCD camera are described. The circuits generates rolls and hexagons, whose pitch has the square root dependence of the spatial frequency upon the positive and negative diffraction length. In compared with a nonlinear optical circuits composed of optically addressed spatial light modulator, the nonlinear optoelectronic circuits have the wide range control of nonlinearity and temporal property, less constraints in an optical and electrical mappings, and a low light level derived from high sensitivity of the CCD camera. We also demonstrate the synchronization of the generated patterns using the optoelectronic circuits with the electronically simulated point nonlinearity and nonlinear mapping.

Paper Details

Date Published: 24 May 2000
PDF: 6 pages
Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); doi: 10.1117/12.386834
Show Author Affiliations
Yoshio Hayasaki, Univ. of Tokushima (Japan)
Yuuki Tamura, Univ. of Tokushima (Japan)
Shusaku Hara, Univ. of Tokushima (Japan)
Hirotsugu Yamamoto, Univ. of Tokushima (Japan)
Nobuo Nishida, Univ. of Tokushima (Japan)


Published in SPIE Proceedings Vol. 4089:
Optics in Computing 2000
Roger A. Lessard; Tigran V. Galstian, Editor(s)

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