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Proceedings Paper

Correction of magneto-optic device phase errors in optical correlators through filter design modifications
Author(s): John D. Downie; Max B. Reid; Butler P. Hine III
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Paper Abstract

We address the problem of optical phase errors in an optical correlator introduced by the input and filter plane spatial light modulators. Specifically, we study a laboratory correlator with magnetooptic spatial light modulator (MOSLM) devices. We measure and characterize the phase errors, analyze their effects on the correlation process, and discuss a means of correction through a design modification of the binary phase-only optical filter function. The phase correction technique is found to produce correlation results close to those of an error-free correlator.

Paper Details

Date Published: 1 November 1991
PDF: 12 pages
Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); doi: 10.1117/12.49721
Show Author Affiliations
John D. Downie, NASA/Ames Research Ctr. (United States)
Max B. Reid, NASA/Ames Research Ctr. (United States)
Butler P. Hine III, NASA/Ames Research Ctr. (United States)

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

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