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Applied Optics

Applied 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)

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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

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

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)

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  1. F. A. Rosell, “Prism scanners,” J. Opt. Soc. Am. 50, 521–526 (1960). [CrossRef]
  2. W. L. Wolfe, “Optical-mechanical scanning techniques and devices,” in The Infrared HandbookW. L. Wolfe and G. J. Zissis, eds. (ERIM, 1989), Chap. 10.
  3. G. Garcia-Torales, M. Strojnik, and G. Paez, “Risley prisms to control wave-front tilt and displacement in a vectorial shearing interferometer,” Appl. Opt. 41, 1380–1384 (2002). [CrossRef]
  4. C. R. Schwarze, R. Vaillancourt, D. Carlson, E. Schundler, T. Evans, and J. R. Engel, “Risley-prism based compact laser beam steering for IRCM, laser communications, and laser radar,” http://www.optra.com/images/TP-Compact_Beam_Steering.pdf .
  5. R. C. Yates, Curves and Their Properties (National Council of Teachers of Math, 1974), p. 255.
  6. Y. Li and J. Katz, “Laser beam scanning by rotary mirrors. I. Modeling mirror-scanning devices,” Appl. Opt. 34, 6403–6416 (1995). [CrossRef]
  7. Y. Li, “Third-order theory of Risley-prism based beam steering system,” Appl. Opt. 50, 679–686 (2011). [CrossRef]
  8. Y. Li, “Closed form analytical inverse solutions for Risley-prism-based beam steering systems in different configurations,” Appl. Opt. 50, 4302–4309 (2011). [CrossRef]
  9. P. R. Yoder, Opto-Mechanical System Design2nd ed.(Marcel Dekker, 1993), p. 22.
  10. C. T. Amirault and C. A. DiMarzio, “Precision pointing using a dual-wedge scanner,” Appl. Opt. 24, 1302–1308(1985). [CrossRef]
  11. M. Saayman, “Materials for infrared optics,” http://www.optics.arizona.edu/optomech/student%20reports/tutorials/2009/Saayman%20521%20Tutorial.pdf .

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