1 December 1991 University of Hawaii adaptive optics system: III. Wavefront curvature sensor
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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 Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Elon Graves, J. Elon Graves, Daniel L. McKenna, Daniel L. McKenna, } "University of Hawaii adaptive optics system: III. Wavefront curvature sensor", Proc. SPIE 1542, Active and Adaptive Optical Systems, (1 December 1991); doi: 10.1117/12.48814; https://doi.org/10.1117/12.48814


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