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Proceedings Paper

Adaptive optics control strategies for extremely large telescopes
Author(s): Donald T. Gavel
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Paper Abstract

Adaptive optics for the 30-100 meter class telescopes now being considered will require an extension in almost every area of AO system component technology. In this paper, we present scaling laws and strawman error budgets for AO systems on extremely large telescopes (ELTs) and discuss the implications for component technology and computational architecture. In the component technology area, we discuss the advanced efforts being pursued at the NSF Center for Adaptive Optics (CfAO) in the development of large number of degrees of freedom deformable mirrors, wavefront sensors, and guidestar lasers. It is important to note that the scaling of present wavefront reconstructor algorithms will become computationally intractable for ELTs and will require the development of new algorithms and advanced numerical mathematics techniques. We present the computational issues and discuss the characteristics of new algorithmic approaches that show promise in scaling to ELT AO systems.

Paper Details

Date Published: 4 February 2002
PDF: 6 pages
Proc. SPIE 4494, Adaptive Optics Systems and Technology II, (4 February 2002); doi: 10.1117/12.454794
Show Author Affiliations
Donald T. Gavel, Lawrence Livermore National Lab. (United States)

Published in SPIE Proceedings Vol. 4494:
Adaptive Optics Systems and Technology II
Robert K. Tyson; Domenico Bonaccini; Michael C. Roggemann, Editor(s)

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