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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 9 — Mar. 20, 2009
  • pp: 1721–1726

Fast beam steering with a ferroelectric-liquid-crystal optical phased array

David Engström, Michael J. O’Callaghan, Chris Walker, and Mark A. Handschy  »View Author Affiliations


Applied Optics, Vol. 48, Issue 9, pp. 1721-1726 (2009)
http://dx.doi.org/10.1364/AO.48.001721


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Abstract

We demonstrate fast, efficient beam steering using a single 1 × 32 analog ferroelectric liquid crystal (FLC) spatial light modulator. A high-tilt FLC material with 82 ° optic-axis switching provides, in a reflective-mode device with a passive quarter-wave retarder between a half-wave FLC layer and a mirror, 91% of full 0 2 π phase modulation. Electronic drive based on applied charge gives 200 μs response-time analog modulation.

© 2009 Optical Society of America

OCIS Codes
(110.5100) Imaging systems : Phased-array imaging systems
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices
(230.6120) Optical devices : Spatial light modulators

ToC Category:
Optical Devices

History
Original Manuscript: January 2, 2009
Manuscript Accepted: February 13, 2009
Published: March 13, 2009

Citation
David Engström, Michael J. O'Callaghan, Chris Walker, and Mark A. Handschy, "Fast beam steering with a ferroelectric-liquid-crystal optical phased array," Appl. Opt. 48, 1721-1726 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-9-1721

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