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Proceedings Paper

UnlSlS adaptive optics system at the Mt. Wilson 2.5-m telescope
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Paper Abstract

A laser guided adaptive optics system called UnISIS -- University of Illinois Seeing Improvement System -- has been commissioned at the Mt. Wilson 2.5-m Telescope. The UnISIS laser guide star is created via Rayleigh scattering of 351 nm photons from a 30 W excimer laser. The laser guide star is focused at an altitude of 20 km above msl. The UnISIS adaptive optics system sits at the fixed f/30 Coude focus of the 2.5-m telescope while the 30 W excimer laser sits on the observatory ground floor. The collimated laser beam is projected first into the Coude room where it is converted to f/30 and projected into the sky off the 2.5-m primary mirror. We describe the practical experience gained in installing and commissioning UnISIS, and we present simulations of the expected system performance based on the characteristic Cn2 distribution above Mt. Wilson.

Paper Details

Date Published: 7 February 2003
PDF: 11 pages
Proc. SPIE 4839, Adaptive Optical System Technologies II, (7 February 2003); doi: 10.1117/12.459161
Show Author Affiliations
Laird A. Thompson, Univ. of Illinois/Urbana-Champaign (United States)
Scott W. Teare, New Mexico Institute of Mining and Technology (United States)
Christopher R. Neyman, W.M. Keck Observatory (United States)
David G. Sandler, Trex Enterprises (United States)


Published in SPIE Proceedings Vol. 4839:
Adaptive Optical System Technologies II
Peter L. Wizinowich; Domenico Bonaccini, Editor(s)

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