Characterization of deformable mirrors for high-order adaptive optics systems

Remko Stuik; Stefan Hippler; Markus Feldt; Jesus Aceituno; Sebastian E. Egner

doi:10.1117/12.550438

25 October 2004 Characterization of deformable mirrors for high-order adaptive optics systems

Remko Stuik, Stefan Hippler, Markus Feldt, Jesus Aceituno, Sebastian E. Egner

Proceedings Volume 5490, Advancements in Adaptive Optics; (2004) https://doi.org/10.1117/12.550438
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

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.

Citation Download Citation

Remko Stuik, Stefan Hippler, Markus Feldt, Jesus Aceituno, and Sebastian E. Egner "Characterization of deformable mirrors for high-order adaptive optics systems", Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); https://doi.org/10.1117/12.550438

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