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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 17 — Jun. 10, 2011
  • pp: 2636–2639

Wide-angle, nonmechanical beam steering with high throughput utilizing polarization gratings

Jihwan Kim, Chulwoo Oh, Steve Serati, and Michael J. Escuti  »View Author Affiliations


Applied Optics, Vol. 50, Issue 17, pp. 2636-2639 (2011)
http://dx.doi.org/10.1364/AO.50.002636


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Abstract

We introduce and demonstrate a ternary nonmechanical beam steering device based on polarization gratings (PGs). Our beam steering device employs multiple stages consisting of combinations of PGs and wave plates, which allows for a unique three-way (ternary) steering design. Ultrahigh efficiency ( 100 % ) and polarization sensitive diffraction of individual PGs allow wide steering angles (among three diffracted orders) with extremely high throughput. We report our successful demonstration of the three-stage beam steerer having a 44 ° field of regard with 1.7 ° resolution at 1550 nm wavelength. A substantially high throughput of 78%–83% is observed that is mainly limited by electrode absorption and Fresnel losses.

© 2011 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(060.4510) Fiber optics and optical communications : Optical communications
(090.1970) Holography : Diffractive optics
(230.1360) Optical devices : Beam splitters
(260.5430) Physical optics : Polarization

ToC Category:
Diffraction and Gratings

History
Original Manuscript: December 22, 2010
Manuscript Accepted: February 12, 2011
Published: June 6, 2011

Citation
Jihwan Kim, Chulwoo Oh, Steve Serati, and Michael J. Escuti, "Wide-angle, nonmechanical beam steering with high throughput utilizing polarization gratings," Appl. Opt. 50, 2636-2639 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-17-2636

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