Correction of magneto-optic device phase errors in optical correlators through filter design modifications

John D. Downie; Max B. Reid; Butler P. Hine III

doi:10.1117/12.49721

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1 November 1991 Correction of magneto-optic device phase errors in optical correlators through filter design modifications

John D. Downie, Max B. Reid, Butler P. Hine III

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Proceedings Volume 1564, Optical Information Processing Systems and Architectures III; (1991) https://doi.org/10.1117/12.49721
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

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John D. Downie, Max B. Reid, and Butler P. Hine III "Correction of magneto-optic device phase errors in optical correlators through filter design modifications", Proc. SPIE 1564, Optical Information Processing Systems and Architectures III, (1 November 1991); https://doi.org/10.1117/12.49721

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