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Proceedings Paper

Optical signal processing using spatiotemporal dynamic system with spatial light modulator
Author(s): Yoshio Hayasaki; Hirotsugu Yamamoto; Nobuo Nishida
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Paper Abstract

Generation and processing of optical patterns in the optical feedback system composed of an optically addressable spatial light modulator and a two-dimensional optical feedback including a spatial frequency filter are demonstrated. The fringe pattern, which is generated by using a single slit, is used in order to estimate the spatial property of the system. An image made of circular isolated spots generated using a low-cut spatial frequency filter could be formed and memorized at the desired position by an external control light under both in-focusing condition and out-of-focusing condition of the optical feedback. Self-scanning isolated spots resulted from unisotropic transverse interactions memorize a spatiotemporal binary image and provide a delay line for them. Furthermore we demonstrate that the optical feedback system controlled by the spatial frequency filter generated in the optoelectronic feedback system performs a dynamic pattern generation.

Paper Details

Date Published: 2 November 2000
PDF: 10 pages
Proc. SPIE 4113, Algorithms and Systems for Optical Information Processing IV, (2 November 2000); doi: 10.1117/12.405839
Show Author Affiliations
Yoshio Hayasaki, Univ. of Tokushima (Japan)
Hirotsugu Yamamoto, Univ. of Tokushima (Japan)
Nobuo Nishida, Univ. of Tokushima (Japan)


Published in SPIE Proceedings Vol. 4113:
Algorithms and Systems for Optical Information Processing IV
Bahram Javidi; Demetri Psaltis, Editor(s)

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