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Proceedings Paper

Microdeformable mirror for adaptive optics systems on extremely large telescopes
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Paper Abstract

Different research groups around the world are currently involved in the design of extremely large optical telescopes, ranging from 30 to 100 m. In order to restore diffraction limited images, this next generation of telescopes highly relies on upgraded adaptive optics (AO) systems. For an efficient AO system, high-order perturbation correction is needed. This can be achieved by the development of new technologies based on micro-opto-electro-mechanical systems (MOEMS). We describe this new technology and analyze the abilities of the main candidates to reach the specifications required. By listing the key parameters, we establish advantages and disadvantages of different MOEMS architectures. In order to characterize these micro-optical components, we are developing a bench set-up for electrical and optical tests, including a new surface characterization method based on the knife-edge test.

Paper Details

Date Published: 7 July 2000
PDF: 8 pages
Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000); doi: 10.1117/12.390354
Show Author Affiliations
Frederic Zamkotsian, Lab. d'Astrophysique de Marseille (France)
Kjetil Dohlen, Lab. d'Astrophysique de Marseille (France)
Marc Ferrari, Lab. d'Astrophysique de Marseille (France)

Published in SPIE Proceedings Vol. 4007:
Adaptive Optical Systems Technology
Peter L. Wizinowich, Editor(s)

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