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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 18 — Jun. 20, 2012
  • pp: 4168–4175

Error sources and their impact on the performance of dual-wedge beam steering systems

Jing-Shyang Horng and Yajun Li  »View Author Affiliations


Applied Optics, Vol. 51, Issue 18, pp. 4168-4175 (2012)
http://dx.doi.org/10.1364/AO.51.004168


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Abstract

This paper presents analytical and numerical results that elucidate the impact of error sources on the performance of dual-wedge beam steering systems. Different types of error sources are considered. Specifically, we investigate optical distortions in the pattern scanned out by a single ray through a pair of rotatable wedge elements with slightly different parameters. Case examples are given to reveal the difference between the distorted patterns and the patterns produced by a pair of perfectly equal wedge elements. Furthermore, nonparaxial ray tracing is performed to investigate the impact of assembly errors on the accuracy of steering a laser beam to a remote target. We found that a misalignment in a bearing axis of rotation with respect to the system optical axis will result in a change of beam deflection off-axis that gives rise to a severe decrease of pointing accuracy to a level well below the level that a tilted wedge prism may attain.

© 2012 Optical Society of America

OCIS Codes
(080.0080) Geometric optics : Geometric optics
(080.2720) Geometric optics : Mathematical methods (general)
(120.5800) Instrumentation, measurement, and metrology : Scanners
(220.2740) Optical design and fabrication : Geometric optical design

History
Original Manuscript: March 15, 2012
Revised Manuscript: April 26, 2012
Manuscript Accepted: May 1, 2012
Published: June 15, 2012

Citation
Jing-Shyang Horng and Yajun Li, "Error sources and their impact on the performance of dual-wedge beam steering systems," Appl. Opt. 51, 4168-4175 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-18-4168

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