Recent results and future DMs for astronomy and for space applications at CILAS

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1117/12.2056287
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Name affiliation
  1. National Research Council of Canada. National Science Infrastructure
FormatText, Article
Proceedings titleAdaptive Optics Systems IV
Series titleProceedings of SPIE; no. 9148
ConferenceAdaptive Optics Systems IV, June 22-27, 2014
ISSN0277-786X
1996-756X
ISBN9780819496164
Article number91480G
SubjectAberrations; Astronomy; Deformation; Laser pulses; Mirrors; Optical coatings; Space applications; bimorph; Deformable mirrors; Extremely Large Telescopes; Ground-based telescopes; High order corrections; monomorph; Operational temperature; Piezo stack; Adaptive optics
Abstract
We present recent experimental results obtained with CILAS deformable mirrors (DMs) or demonstration prototypes in solar and night-time astronomy (with ground-based telescopes) as well as observation of the Earth (with space telescopes). These important results have been reached thanks to CILAS technology range composed of monomorph and piezostack deformable mirrors, drivers and optical coatings. For instance, the monomorph technology, due to a simple architecture can offer a very good reliability for space applications. It can be used for closed or open loop correction of the primary mirror deformation (thermal and polishing aberrations, absence of gravity). It can also allow a real-time correction of wavefront aberrations introduced by the atmosphere up to relatively high spatial and temporal frequencies for ground-based telescopes. The piezostack technology is useful for very high order correction at high frequency and under relatively low operational temperature (down to -30°C), which is required for future Extremely Large Telescopes (ELTs). This wide range of applications is exposed through recent examples of DMs performances in operation and results obtained with breadboards, allowing promising DMs for future needs.
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PublisherSPIE
LanguageEnglish
Peer reviewedYes
NPARC number21275532
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Record identifierb5d6dde1-ab63-4756-8800-540f6f7f37c0
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