Deformable Mirror Technology Development at ESO – From open-loop to eXtreme Adaptive Optics

Pierre-Yves Madec; Stefan Ströbele; Markus Kasper; Norbert Hubin; Frank Eisenhauer; Dieter Lutz; Jean-Baptiste Le Bouquin

doi:10.1117/12.2627835

29 August 2022 Deformable Mirror Technology Development at ESO – From open-loop to eXtreme Adaptive Optics

Pierre-Yves Madec, Stefan Ströbele, Markus Kasper, Norbert Hubin, Frank Eisenhauer, Dieter Lutz, Jean-Baptiste Le Bouquin

Author Affiliations +

Proceedings Volume 12185, Adaptive Optics Systems VIII; 1218525 (2022) https://doi.org/10.1117/12.2627835
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The second phase of the ESO program aiming at developing the Deformable Mirror (DM) technology requested by the Extremely Large Telescopes’ post-focal Adaptive Optics (AO) has been kicked-off end of 2020. A development contract has been granted to ALPAO to deliver a scale-one prototype of a 64x64 actuator DM compliant with the high temporal, thermal and mechanical stability requested by open-loop AO applications. In addition, a test facility allowing the full characterization of the expected DM stability has been assembled by ALPAO and is now available; it has been recently used to assess the performance of the first GRAVITY+ DM. Additionally, a new contract is in preparation to consolidate the technology requested to deliver DMs suitable for XAO systems and high contrast imaging, and the delivery of a scale-one prototype. This paper presents the status of the open-loop DM technology development and gives details about the soon-coming XAO DM activities.

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Pierre-Yves Madec, Stefan Ströbele, Markus Kasper, Norbert Hubin, Frank Eisenhauer, Dieter Lutz, and Jean-Baptiste Le Bouquin "Deformable Mirror Technology Development at ESO – From open-loop to eXtreme Adaptive Optics", Proc. SPIE 12185, Adaptive Optics Systems VIII, 1218525 (29 August 2022); https://doi.org/10.1117/12.2627835

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