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Proceedings Paper

Point spread function reconstruction from Woofer-Tweeter adaptive optics bench
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Paper Abstract

This paper describes a model-based and experimental evaluation of a point spread function (PSF) reconstruction technique for a Dual Deformable Mirror (DM) Woofer-Tweeter (W/T) Adaptive Optics (AO) system. In the W/T architecture, the Woofer is a low-order-high-stroke DM, and it is used to compensate for the low-frequency-high-amplitude effects introduced by the atmospheric turbulence. The Tweeter is a high-order-low-stroke DM that is used to compensate for the high-frequency-low-amplitude effects introduced by the atmospheric turbulence. The research concept of having Dual DMs allows the W/T AO system to have a high degree of correction of large amplitude wavefront distortion. The role of the UVic AO bench is to demonstrate the closed-loop wavefront control feasibility for a W/T AO concept to be used on the science instruments of the Thirty Meter Telescope (TMT).

Paper Details

Date Published: 27 June 2006
PDF: 10 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 62724I (27 June 2006); doi: 10.1117/12.672453
Show Author Affiliations
Onur Keskin, Univ. of Victoria (Canada)
Rodolphe Conan, Univ. of Victoria (Canada)
Colin Bradley, Univ. of Victoria (Canada)


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

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