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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 31, Iss. 20 — Jul. 10, 1992
  • pp: 4010–4015

Spatial light modulation techniques for system application to multipath delay estimation

Michael J. Ward, Christopher W. Keefer, and Stephen T. Welstead  »View Author Affiliations


Applied Optics, Vol. 31, Issue 20, pp. 4010-4015 (1992)
http://dx.doi.org/10.1364/AO.31.004010


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Abstract

Three electronically addressed spatial light modulators (SLM’s) are tested for their utility in forming optical taps onto an acousto-optic delay line. The SLM’s are characterized as devices within a specific optical signal-processing application rather than as independent components. The signal-processing architecture described here uses a programmable tapped delay line for estimating multipath delays. Overall system performance specifications necessitate the SLM requirements. These requirements are compared with the measured performance characteristics of a magneto-optic SLM, a liquid-crystal display, and an acousto-optic deflector used as an SLM. The magneto-optic SLM and the liquid-crystal display are found to provide insufficient contrast and system light efficiency. The acousto-optic-based SLM is found to provide the best overall SLM performance for this particular optical signal processing application.

© 1992 Optical Society of America

History
Original Manuscript: January 11, 1991
Published: July 10, 1992

Citation
Michael J. Ward, Christopher W. Keefer, and Stephen T. Welstead, "Spatial light modulation techniques for system application to multipath delay estimation," Appl. Opt. 31, 4010-4015 (1992)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-31-20-4010

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