Photorefractive image processing using mutually pumped phase conjugators

Edward J. Sharp; Gary L. Wood; Gregory J. Salamo; Richard J. Anderson; Jan M. Yarrison-Rice; Ratnakar R. Neurgaonkar

doi:10.1117/12.169442

1 March 1994 Photorefractive image processing using mutually pumped phase conjugators

Edward J. Sharp, Gary L. Wood, Gregory J. Salamo, Richard J. Anderson, Jan M. Yarrison-Rice, Ratnakar R. Neurgaonkar

Proceedings Volume 2237, Optical Pattern Recognition V; (1994) https://doi.org/10.1117/12.169442
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

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.

Citation Download Citation

Edward J. Sharp, Gary L. Wood, Gregory J. Salamo, Richard J. Anderson, Jan M. Yarrison-Rice, and Ratnakar R. Neurgaonkar "Photorefractive image processing using mutually pumped phase conjugators", Proc. SPIE 2237, Optical Pattern Recognition V, (1 March 1994); https://doi.org/10.1117/12.169442

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