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Optical Engineering

Adaptive secondary mirror demonstrator: construction and preliminary evaluation
Author(s): Jun Ho Lee; David D. Walker; Andrew Peter Doel
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Paper Abstract

Adaptive optics (AO) combines technologies that enable the correction of the wavefront distortion caused by the earth's atmospheric turbulence in real time. Adaptive secondary mirror (ASM) systems have been proposed and are now being developed. ASMs have advantages over conventional AO systems in terms of throughput, polarization and IR emissivity. Previously, we reported the design of an ASM demonstrator along with its predicted performance. We now report the construction techniques and the results from the preliminary static and dynamic testing of such a demonstrator. In particular, assembly methods that preserve the optical quality of the mirror are presented along with experimentally measured mirror influence functions and closed loop tip/tilt performance.

Paper Details

Date Published: 1 April 2000
PDF: 6 pages
Opt. Eng. 39(4) doi: 10.1117/1.602446
Published in: Optical Engineering Volume 39, Issue 4
Show Author Affiliations
Jun Ho Lee, Korea Advanced Inst. of Science and Technology (South Korea)
David D. Walker, Univ. College London (United Kingdom)
Andrew Peter Doel, Univ. College London (United Kingdom)

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