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Proceedings Paper

Thermal deformable mirror
Author(s): Carlos A. Caicedo; Allan Wirth; Greg LaRosa; Rob Coerver; John Wilt; Mike Taylor
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Paper Abstract

Beam correction of high power lasers often requires large wavefront deformations with very slow rates of change. Adaptive Optics Associates, Inc. (AOA) has developed a new type of deformable mirror in which thermal expansion of tubes control the mirror's figure. This paper is the subject of a patent disclosure. Such a mirror can produce large stroke at rates compatible with thermal distortions in high power lasers. This paper discusses the design of this device including range of deformation, ways to measure the temperature of the tubes, and algorithms to control mirror shape while compensating for the non-symmetrical response of thermal expansion and contraction. The construction of a prototype device and the associated control electronics and software is also covered. Photographs of the working device are shown.

Paper Details

Date Published: 27 June 2006
PDF: 10 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 627252 (27 June 2006); doi: 10.1117/12.672022
Show Author Affiliations
Carlos A. Caicedo, Adaptive Optics Associates (United States)
Allan Wirth, Adaptive Optics Associates (United States)
Greg LaRosa, Adaptive Optics Associates (United States)
Rob Coerver, Adaptive Optics Associates (United States)
John Wilt, Adaptive Optics Associates (United States)
Mike Taylor, Adaptive Optics Associates (United States)

Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

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