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

J. Elon Graves; Daniel L. McKenna

doi:10.1117/12.48814

1 December 1991 University of Hawaii adaptive optics system: III. Wavefront curvature sensor

J. Elon Graves, Daniel L. McKenna

Proceedings Volume 1542, Active and Adaptive Optical Systems; (1991) https://doi.org/10.1117/12.48814
Event: San Diego, '91, 1991, San Diego, CA, United States

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.

Citation Download 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, (1 December 1991); https://doi.org/10.1117/12.48814

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