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Proceedings Paper

Photorefractive image processing using mutually pumped phase conjugators
Author(s): Edward J. Sharp; Gary L. Wood; Gregory J. Salamo; Richard J. Anderson; Jan M. Yarrison-Rice; Ratnakar R. Neurgaonkar
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Paper Abstract

A photorefractive mutually pumped phase conjugator is operated in both the steady-state and transient regimes to demonstrate several important optical processing applications. While in the transient regime, or when photorefractive grating formation is taking place in the mutually pumped conjugator, cross talk is observed between the two input beams. This feature is used to demonstrate the instantaneous transfer of pictorial information from one laser beam to another and to perform the correlation of moving objects. Image transfer, optical correlation, and interferometric applications are presented. Key issues concerning the spatial resolution, time response, and Bragg condition are discussed for these applications.

Paper Details

Date Published: 1 March 1994
PDF: 13 pages
Proc. SPIE 2237, Optical Pattern Recognition V, (1 March 1994); doi: 10.1117/12.169442
Show Author Affiliations
Edward J. Sharp, Army Research Lab. (United States)
Gary L. Wood, Army Research Lab. (United States)
Gregory J. Salamo, Univ. of Arkansas (United States)
Richard J. Anderson, National Science Foundation (United States)
Jan M. Yarrison-Rice, Univ. of Miami (United States)
Ratnakar R. Neurgaonkar, Rockwell International Science Ctr. (United States)


Published in SPIE Proceedings Vol. 2237:
Optical Pattern Recognition V
David P. Casasent; Tien-Hsin Chao, Editor(s)

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