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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 5 — Mar. 8, 2004
  • pp: 868–882

Demonstration of 3-dimensional wide angle laser beam scanner using liquid crystals

Sajjad A. Khan and Nabeel A. Riza  »View Author Affiliations


Optics Express, Vol. 12, Issue 5, pp. 868-882 (2004)
http://dx.doi.org/10.1364/OPEX.12.000868


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Abstract

Design and demonstration of a versatile liquid crystal-based scanner is shown for steering a laser beam in three dimensions. The scanner consists of a unique combination of digital and analog control polarization-based beamforming optics resulting in both continuous and random fashion beam steering. The design features a novel device biasing method, large aperture beamforming optics, low electrical power consumption, and ultra-fine as well as wide angle coarse beam steering. Demonstrations include one, two and three dimensional beam steering with a maximum of 40.92° continuous scan, all at 1550 nm. The minimum scanner aperture is 1 cm diameter and uses a combination of ferroelectric and nematic liquid crystals in addition to Rutile crystal birefringent prisms.

© 2004 Optical Society of America

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(120.5800) Instrumentation, measurement, and metrology : Scanners
(160.3710) Materials : Liquid crystals
(230.5440) Optical devices : Polarization-selective devices

ToC Category:
Research Papers

History
Original Manuscript: February 4, 2004
Revised Manuscript: February 25, 2004
Published: March 8, 2004

Citation
Sajjad Khan and Nabeel Riza, "Demonstration of 3-dimensional wide angle laser beam scanner using liquid crystals," Opt. Express 12, 868-882 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-5-868


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References

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