18 February 2010 Adaptive optics control system for segmented MEMS deformable mirrors
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Proceedings Volume 7595, MEMS Adaptive Optics IV; 75950M (2010) https://doi.org/10.1117/12.846301
Event: SPIE MOEMS-MEMS, 2010, San Francisco, California, United States
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.
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Carl J. Kempf, Michael A. Helmbrecht, Marc Besse, "Adaptive optics control system for segmented MEMS deformable mirrors", Proc. SPIE 7595, MEMS Adaptive Optics IV, 75950M (18 February 2010); doi: 10.1117/12.846301; https://doi.org/10.1117/12.846301

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