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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 17 — Aug. 25, 2014
  • pp: 20038–20044

High speed optical phased array using high contrast grating all-pass filters

Weijian Yang, Tianbo Sun, Yi Rao, Mischa Megens, Trevor Chan, Byung-Wook Yoo, David A. Horsley, Ming C. Wu, and Connie J. Chang-Hasnain  »View Author Affiliations


Optics Express, Vol. 22, Issue 17, pp. 20038-20044 (2014)
http://dx.doi.org/10.1364/OE.22.020038


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Abstract

We report a high speed 8x8 optical phased array using tunable 1550 nm all-pass filters with ultrathin high contrast gratings (HCGs) as the microelectromechanical-actuated top reflectors. The all-pass filter design enables a highly efficient phase tuning (1.7 π) with a small actuation voltage (10 V) and actuation displacement of the HCG (50 nm). The microelectromechanical HCG structure facilitates a high phase tuning speed >0.5 MHz. Beam steering is experimentally demonstrated with the optical phased array.

© 2014 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(110.5100) Imaging systems : Phased-array imaging systems
(230.4685) Optical devices : Optical microelectromechanical devices

ToC Category:
Diffraction and Gratings

History
Original Manuscript: April 14, 2014
Revised Manuscript: June 6, 2014
Manuscript Accepted: July 11, 2014
Published: August 12, 2014

Citation
Weijian Yang, Tianbo Sun, Yi Rao, Mischa Megens, Trevor Chan, Byung-Wook Yoo, David A. Horsley, Ming C. Wu, and Connie J. Chang-Hasnain, "High speed optical phased array using high contrast grating all-pass filters," Opt. Express 22, 20038-20044 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-17-20038


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