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Proceedings Paper

Increased bandwidth liquid crystal MEMS adaptive optics system
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Paper Abstract

In previous work we demonstrated a nematic liquid crystal MEMS adaptive optics system for observation of low earth orbit satellites. However the closed loop bandwidth was limited to 40 Hz due to latency in the interface electronics between the control computer and the device driver. This bandwidth is marginal for compensation of atmospheric turbulence effects, where the Greenwood frequency is often in excess of 100 Hz. Recently the interface has been redesigned and as a result we have been able to nearly double the bandwidth. In this paper we describe laboratory experiments with the faster system.

Paper Details

Date Published: 11 November 2004
PDF: 7 pages
Proc. SPIE 5572, Optics in Atmospheric Propagation and Adaptive Systems VII, (11 November 2004); doi: 10.1117/12.565876
Show Author Affiliations
David Charles Dayton, Applied Technology Associates (United States)
Stephen Browne, Optical Sciences Co. (United States)
John D. Gonglewski, Air Force Research Lab. (United States)
Sergio Raffaele Restaino, Air Force Research Lab. (United States)


Published in SPIE Proceedings Vol. 5572:
Optics in Atmospheric Propagation and Adaptive Systems VII
John D. Gonglewski; Karin Stein, Editor(s)

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