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Proceedings Paper

Towards A Practical Updatable Optical Image Correlator
Author(s): M. G. Nicholson; I. R. Cooper; G. G. Gibbons
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Paper Abstract

We describe initial experiments on a photorefractive based optical image correlator which employs a frequency doubled, pulsed Nd:YAG laser with a pulse length of 10 nsec to write a phase grating into a crystal of bismuth silicon oxide. The correlation of simple binary images has been demonstrated and measurements indicate that the rise time of the correlation signal is less than 200 nsec. The vibration stability of the pulsed system is much greater than previous CW systems.

Paper Details

Date Published: 10 July 1987
PDF: 5 pages
Proc. SPIE 0701, 1986 European Conf on Optics, Optical Systems and Applications, (10 July 1987); doi: 10.1117/12.937030
Show Author Affiliations
M. G. Nicholson, GEC Research Ltd (United Kingdom)
I. R. Cooper, GEC Research Ltd (United Kingdom)
G. G. Gibbons, GEC Research Ltd (United Kingdom)


Published in SPIE Proceedings Vol. 0701:
1986 European Conf on Optics, Optical Systems and Applications
Stefano Sottini; Silvana Trigari, Editor(s)

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