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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 23 — Aug. 10, 2003
  • pp: 4747–4757

Design and demonstration of a switching engine for a binary true-time-delay device that uses a White cell

Richard Higgins, Niru K. Nahar, and Betty Lise Anderson  »View Author Affiliations


Applied Optics, Vol. 42, Issue 23, pp. 4747-4757 (2003)
http://dx.doi.org/10.1364/AO.42.004747


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Abstract

Optical true-time-delay devices based on the White cell can be divided into two general types: polynomial cells, in which the number of delays that can be obtained is related to the number of times m that a beam bounces in the cell raised to some power, and exponential cells, in which the number of delays is proportional to some number raised to the power of m. In exponential cells, the topic to be addressed, the spatial light modulator switches between a delay element and a null path on each bounce. We describe an improved design of this switching engine, which contains a liquid-crystal switch and a White cell. We examine astigmatism and corrections for it and present a specific design.

© 2003 Optical Society of America

OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(200.4740) Optics in computing : Optical processing
(220.1000) Optical design and fabrication : Aberration compensation
(230.3720) Optical devices : Liquid-crystal devices
(280.5110) Remote sensing and sensors : Phased-array radar

History
Original Manuscript: December 3, 2002
Published: August 10, 2003

Citation
Richard Higgins, Niru K. Nahar, and Betty Lise Anderson, "Design and demonstration of a switching engine for a binary true-time-delay device that uses a White cell," Appl. Opt. 42, 4747-4757 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-23-4747

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