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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 23 — Aug. 10, 2002
  • pp: 4912–4921

Optical true time delay for phased-array antennas: demonstration of a quadratic White cell

Betty Lise Anderson and Craig D. Liddle  »View Author Affiliations


Applied Optics, Vol. 41, Issue 23, pp. 4912-4921 (2002)
http://dx.doi.org/10.1364/AO.41.004912


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Abstract

We have demonstrated a proof-of-concept optical device that can produce true time delays for a phased-array radar. This device combines White cells of differing lengths with a spatial light modulator to select between the paths on multiple bounces of a given beam. The approach can handle thousands of light beams and produce hundreds of different delays. The number of delays is proportional to the square of the number of bounces.

© 2002 Optical Society of America

OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(160.3710) Materials : Liquid crystals
(230.6120) Optical devices : Spatial light modulators

History
Original Manuscript: October 15, 2001
Revised Manuscript: April 15, 2002
Published: August 10, 2002

Citation
Betty Lise Anderson and Craig D. Liddle, "Optical true time delay for phased-array antennas: demonstration of a quadratic White cell," Appl. Opt. 41, 4912-4921 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-23-4912

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