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Proceedings Article

University of Hawaii adaptive optics system: III. Wavefront curvature sensor

[+] Author Affiliations
J. Elon Graves, Daniel L. McKenna

Univ. of Hawaii/Manoa (USA)

Proc. SPIE 1542, Active and Adaptive Optical Systems, 262 (December 1, 1991); doi:10.1117/12.48814
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From Conference Volume 1542

  • Active and Adaptive Optical Systems
  • Mark A. Ealey
  • San Diego, CA | July 21, 1991

abstract

The structure of a wavefront sensor suitable for adaptive optics is described. The sensor scans rapidly between extra focus images with a vibrating membrane mirror acting as a variable curvature active optical element. The membrane mirror and driver are described. The optical system is coupled to an array detector optimized to match the response of a bimorph mirror and directly produces wavefront error signals. Results are presented and compared with other techniques for curvature sensing. Tip-tilt corrections achieved using the wavefront sensor are discussed.

© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

J. Elon Graves and Daniel L. McKenna
"University of Hawaii adaptive optics system: III. Wavefront curvature sensor", Proc. SPIE 1542, Active and Adaptive Optical Systems, 262 (December 1, 1991); doi:10.1117/12.48814; http://dx.doi.org/10.1117/12.48814


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