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Proceedings Paper

Phase Conjugate Mirrors As Thresholding Elements For Optical Associative Memories
Author(s): Mark Cronin-Golomb; Amnon Yariv
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Paper Abstract

We describe several ways to use photorefractive phase conjugators as thresholding elements for optical associative memories. The first involves background illumination of the crystal of a self-pumped phase conjugator. The second method uses a photorefractive phase conjugator designed so that its reflectivity increases with increasing signal strength. The third method uses semi-self-pumped phase conjugators in which one pump is externally provided as a thresholding reference and the other is self-induced as an oscillation beam. Two examples are the double phase conjugate mirror and a new type of phase conjugator based on injection of a counterpropagating pump beam into a unidirectional ring resonator.

Paper Details

Date Published: 8 January 1987
PDF: 3 pages
Proc. SPIE 0700, 1986 Intl Optical Computing Conf, (8 January 1987); doi: 10.1117/12.936993
Show Author Affiliations
Mark Cronin-Golomb, Ortel Corporation (United States)
Amnon Yariv, California Institute of Technology (United States)


Published in SPIE Proceedings Vol. 0700:
1986 Intl Optical Computing Conf
Asher A. Friesem; Emanuel Marom; Joseph Shamir, Editor(s)

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