Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Effects of systematic phase errors on phase only correlation

Not Accessible

Your library or personal account may give you access

Abstract

The performance of phase-only optical correlators is usually reduced if the filter-plane phase differs from that prescribed for the classical matched filter. Current spatial light modulators, which frequently produce less than 2π phase modulation, and interface circuits, which quantize or incorrectly amplify signals placed on the spatial light modulator, both can produce systematic phase errors. We examine these effects using a model of correlation-peak amplitude as a function of phase error. The correlation peak is reasonably approximated as the product of an average of unity-amplitude error phasors multiplied by the average amplitude across the filter plane. The trends predicted by this new model compare favorably with computer simulations that use gray-scale images.

© 1994 Optical Society of America

Full Article  |  PDF Article
More Like This
Effects and correction of magneto-optic spatial light modulator phase errors in an optical correlator

John D. Downie, Butler P. Hine, and Max B. Reid
Appl. Opt. 31(5) 636-643 (1992)

Approximating fully complex spatial modulation with pseudorandom phase-only modulation

Robert W. Cohn and Minhua Liang
Appl. Opt. 33(20) 4406-4415 (1994)

Geometric approach for designing optical binary amplitude and binary phase-only filters

Mustafa M. Matalgah, Jerome Knopp, and Larry Eifler
Appl. Opt. 37(35) 8233-8246 (1998)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (26)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved