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Proceedings Paper

Adaptive optics control system for segmented MEMS deformable mirrors
Author(s): Carl J. Kempf; Michael A. Helmbrecht; Marc Besse
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Paper Abstract

Iris AO has developed a full closed-loop control system for control of segmented MEMS deformable mirrors. It is based on a combination of matched wavefront sensing, modal wavefront estimation, and well-calibrated open-loop characteristics. This assures closed-loop operation free of problems related to co-phasing segments or undetectable waffle patterns. This controller strategy results in relatively simple on-line computations which are suitable for implementation on low cost digital signal processors. It has been successfully implemented on Iris AO's 111 actuator (37 segment) deformable mirrors used in test-beds and research systems.

Paper Details

Date Published: 18 February 2010
PDF: 12 pages
Proc. SPIE 7595, MEMS Adaptive Optics IV, 75950M (18 February 2010); doi: 10.1117/12.846301
Show Author Affiliations
Carl J. Kempf, Iris AO, Inc. (United States)
Michael A. Helmbrecht, Iris AO, Inc. (United States)
Marc Besse, Iris AO, Inc. (United States)


Published in SPIE Proceedings Vol. 7595:
MEMS Adaptive Optics IV
Scot S. Olivier; Thomas G. Bifano; Joel A. Kubby, Editor(s)

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