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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 19 — Sep. 15, 2008
  • pp: 14617–14628

2-Dimensional beamsteering using dispersive deflectors and wavelength tuning

Trevor Chan, Evgeny Myslivets, and Joseph E. Ford  »View Author Affiliations

Optics Express, Vol. 16, Issue 19, pp. 14617-14628 (2008)

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We introduce a 2D beamscanner which is controlled by wavelength tuning. Two passive dispersive devices are aligned orthogonally to deflect the optical beam in two dimensions. We provide a proof of principle demonstration by combining an arrayed waveguide grating with a free space optical grating and using various input sources to characterize the beamscanner. This achieved a discrete 10.3° by 11° output field of view with attainable angles existing on an 8 by 6 grid of directions. The entire range was reached by scanning over a 40 nm wavelength range. We also analyze an improved system combining a virtually imaged phased array with a diffraction grating. This device is much more compact and produces a continuous output scan in one direction while being discrete in the other.

© 2008 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(080.1238) Geometric optics : Array waveguide devices
(060.2605) Fiber optics and optical communications : Free-space optical communication

ToC Category:
Diffraction and Gratings

Original Manuscript: May 15, 2008
Revised Manuscript: July 10, 2008
Manuscript Accepted: August 5, 2008
Published: September 3, 2008

Trevor Chan, Evgeny Myslivets, and Joseph E. Ford, "2-Dimensional beamsteering using dispersive deflectors and wavelength tuning," Opt. Express 16, 14617-14628 (2008)

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