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Proceedings Paper

Characterization of deformable mirrors for high-order adaptive optics systems
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Paper Abstract

Deformable mirrors with more than 1000 actuators are currently being developed for eXtreme AO applications, either for ELTs, high order Adaptive Optics correction in the visible light, or combination of both. The large number of actuators, the high frequency at which these DMs are to be used and further advancement in schemes for AO control, requiring a growing degree of knowledge of the AO system for efficient correction, sets special requirements on the characterization of the static and dynamic behavior of the DM. In the light of CHEOPS, an extreme-AO Planet Finder project, we have characterized a Xinetics deformable mirrors with 349 actuators. This mirror serves as a proxy for the characterization of a >1200 actuator DM of a similar type, which will be implemented in CHEOPS. In this paper we present the results of this characterization. Special attention was paid to mirror properties like hysteresis, non-linearity, temperature dependence and influence function.

Paper Details

Date Published: 25 October 2004
PDF: 7 pages
Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); doi: 10.1117/12.550438
Show Author Affiliations
Remko Stuik, Leiden Observatory/Univ. Leiden (Netherlands)
Stefan Hippler, Max-Planck-Institut fur Astronomie (Germany)
Markus Feldt, Max-Planck-Institut fur Astronomie (Germany)
Jesus Aceituno, Ctr. Astronomico Hispano Aleman (Spain)
Sebastian E. Egner, Max-Planck-Institut fur Astronomie (Germany)

Published in SPIE Proceedings Vol. 5490:
Advancements in Adaptive Optics
Domenico Bonaccini Calia; Brent L. Ellerbroek; Roberto Ragazzoni, Editor(s)

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