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Proceedings Paper

Real-time nonlinear optical correlator in speckle metrology
Author(s): Akifumi Ogiwara; Junji Ohtsubo
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Paper Abstract

In speckle correlation technique, both the specklegram and its Fourier transformed fringe pattern are detected by nonlinear Optic RAM detectors. The speckle correlation is calculated by the nonlinear optical correlator using a phase modulation property of a liquid crystal television. The effects of the binarization for the signals on the diffraction efficiency are discussed theoretically and experimentally.

Paper Details

Date Published: 1 November 1991
PDF: 12 pages
Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); doi: 10.1117/12.49719
Show Author Affiliations
Akifumi Ogiwara, Shizuoka Univ. (Japan)
Junji Ohtsubo, Shizuoka Univ. (Japan)


Published in SPIE Proceedings Vol. 1564:
Optical Information Processing Systems and Architectures III
Bahram Javidi, Editor(s)

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