UnISIS: a laser-guided adaptive optics system for the Mt. Wilson 2.5-m telescope

Laird A. Thompson; Richard M. Castle; Scott W. Teare; Peter R. McCullough; Samuel L. Crawford

doi:10.1117/12.321707

11 September 1998 UnISIS: a laser-guided adaptive optics system for the Mt. Wilson 2.5-m telescope

Laird A. Thompson, Richard M. Castle, Scott W. Teare, Peter R. McCullough, Samuel L. Crawford

Proceedings Volume 3353, Adaptive Optical System Technologies; (1998) https://doi.org/10.1117/12.321707
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

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.

Citation Download Citation

Laird A. Thompson, Richard M. Castle, Scott W. Teare, Peter R. McCullough, and Samuel L. Crawford "UnISIS: a laser-guided adaptive optics system for the Mt. Wilson 2.5-m telescope", Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); https://doi.org/10.1117/12.321707

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