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Applied Optics

Applied 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)

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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

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

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)

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  1. P. F. McManamon, P. J. Bos, M. J. Escuti, J. Heikenfeld, S. Serati, H. Xie, and E. A. Watson, “A review of phased array steering for narrow-band electrooptical systems,” Proc. IEEE 97, 1078–1096 (2009). [CrossRef]
  2. L. Shi, P. F. McManamon, and P. J. Bos, “Liquid crystal optical phase plate with a variable in-plane gradient,” J. Appl. Phys. 104, 033109 (2008). [CrossRef]
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  6. J. Kim, C. Oh, M. J. Escuti, L. Hosting, and S. Serati, “Wide-angle nonmechanical beam steering using thin liquid crystal polarization gratings,” Proc. SPIE 7093, 709302 (2008). [CrossRef]
  7. R. K. Komanduri, W. M. Jones, C. Oh, and M. J. Escuti, “Polarization-independent modulation for projection displays using small-period LC polarization gratings,” J. Soc. Inf. Disp. 15, 589–594 (2007). [CrossRef]
  8. X. Wang, D. Wilson, R. Muller, P. Maker, and D. Psaltis, “Liquid-crystal blazed-grating beam deflector,” Appl. Opt. 39, 6545–6555 (2000). [CrossRef]
  9. O. M. Efimov, L. B. Glebov, and V. I. Smirnov, “High-frequency Bragg gratings in a photothermorefractive glass,” Opt. Lett. 25, 1693–1695 (2000). [CrossRef]
  10. M. J. Escuti, D. R. Cairns, and G. P. Crawford, “Optical-strain characteristics of anisotropic polymer films fabricated from a liquid crystal diacrylate,” J. Appl. Phys. 95, 2386–2390 (2004). [CrossRef]

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