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Proceedings Paper

A multi-conjugate adaptive optics testbed using two MEMS deformable mirrors
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Paper Abstract

Adaptive optics (AO) systems are well demonstrated in the literature with both laboratory and real-world systems being developed. Some of these systems have employed MEMS deformable mirrors as their active corrective element. More recent work in AO for astronomical applications has focused on providing correction in more than one conjugate plane. Additionally, horizontal path AO systems are exploring correction in multiple conjugate planes. This provides challenges for a laboratory system as the aberrations need to be generated and corrected in more than one plane in the optical system. Our work with compact AO systems employing MEMS technology in addition to liquid crystal spatial light modulator (SLM) driven aberration generators has been scaled up to a two conjugate plane testbed. Using two SLM based aberration generators and two separate wavefront sensors, the system can apply correction with two MEMS deformable mirrors. The challenges in such a system are to properly match non-identical components and weight the correction algorithm for correcting in two planes. This paper demonstrates preliminary results and analysis with this system with wavefront data and residual error measurements.

Paper Details

Date Published: 14 February 2011
PDF: 9 pages
Proc. SPIE 7931, MEMS Adaptive Optics V, 79310C (14 February 2011); doi: 10.1117/12.884788
Show Author Affiliations
Jonathan R. Andrews, U.S. Naval Research Lab. (United States)
Ty Martinez, U.S. Naval Research Lab. (United States)
Scott W. Teare, New Mexico Institute of Mining and Technology (United States)
Sergio R. Restaino, U.S. Naval Research Lab. (United States)
Christopher C. Wilcox, U.S. Naval Research Lab. (United States)
Freddie Santiago, U.S. Naval Research Lab. (United States)
Don M. Payne, Narrascape, Inc. (United States)

Published in SPIE Proceedings Vol. 7931:
MEMS Adaptive Optics V
Scot S. Olivier; Thomas G. Bifano; Joel A. Kubby, Editor(s)

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