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Proceedings Paper

UnISIS: a laser-guided adaptive optics system for the Mt. Wilson 2.5-m telescope
Author(s): Laird A. Thompson; Richard M. Castle; Scott W. Teare; Peter R. McCullough; Samuel L. Crawford
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Paper Abstract

Final design details are given for UnISIS, the University of Illinois Seeing Improvement System. The principle components include a 50 Watt Excimer laser working at 351 nm which produces a pulsed Rayleigh laser guide star at 333 Hz and 18 km altitude, a 177-actuator deformable mirror, an atmospheric dispersion correction system, and a science camera configuration with both visual and near-IR cameras that can be used simultaneously. Two high-speed CCD cameras are used to feed dual quad C40 DSP-based reconstructor to close the feedback loop with the deformable mirror. The adaptive optics system is situated on a large optics table that rests above the old Coude spectrograph of the Mt. Wilson 2.5-m telescope and the Excimer laser is located in a basement Coude room.

Paper Details

Date Published: 11 September 1998
PDF: 8 pages
Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); doi: 10.1117/12.321707
Show Author Affiliations
Laird A. Thompson, Univ. of Illinois/Urbana-Champaign (United States)
Richard M. Castle, Univ. of Illinois/Urbana-Champaign (United States)
Scott W. Teare, Univ. of Illinois/Urbana-Champaign (United States)
Peter R. McCullough, Univ. of Illinois/Urbana-Champaign (United States)
Samuel L. Crawford, Univ. of Illinois/Urbana-Champaign (United States)

Published in SPIE Proceedings Vol. 3353:
Adaptive Optical System Technologies
Domenico Bonaccini; Robert K. Tyson, Editor(s)

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