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Proceedings Paper

Visible light laser guidestar experimental system (Villages): on-sky tests of new technologies for visible wavelength all-sky coverage adaptive optics systems
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Paper Abstract

The Lick Observatory is pursuing new technologies for adaptive optics that will enable feasible low cost laser guidestar systems for visible wavelength astronomy. The Villages system, commissioned at the 40 inch Nickel Telescope this past Fall, serves as an on-sky testbed for new deformable mirror technology (high-actuator count MEMS devices), open-loop wavefront sensing and control, pyramid wavefront sensing, and laser uplink correction. We describe the goals of our experiments and present the early on-sky results of AO closed-loop and open-loop operation. We will also report on our plans for on-sky tests of the direct-phase measuring pyramid-lenslet wavefront sensor and plans for installing a laser guidestar system.

Paper Details

Date Published: 7 July 2008
PDF: 11 pages
Proc. SPIE 7015, Adaptive Optics Systems, 70150G (7 July 2008); doi: 10.1117/12.790228
Show Author Affiliations
Donald Gavel, UCO/Lick Observatory, Univ. of California Santa Cruz (United States)
S. Mark Ammons, UCO/Lick Observatory, Univ. of California Santa Cruz (United States)
Brian Bauman, Lawrence Livermore National Lab. (United States)
Daren Dillon, UCO/Lick Observatory, Univ. of California Santa Cruz (United States)
Elinor Gates, UCO/Lick Observatory, Univ. of California Santa Cruz (United States)
Bryant Grigsby, UCO/Lick Observatory, Univ. of California Santa Cruz (United States)
Jess Johnson, UCO/Lick Observatory, Univ. of California Santa Cruz (United States)
Chris Lockwood, UCO/Lick Observatory, Univ. of California Santa Cruz (United States)
Kathleen Morzinski, UCO/Lick Observatory, Univ. of California Santa Cruz (United States)
David Palmer, Lawrence Livermore National Lab. (United States)
Marc Reinig, UCO/Lick Observatory, Univ. of California Santa Cruz (United States)
Scott Severson, Sonoma State Univ. (United States)


Published in SPIE Proceedings Vol. 7015:
Adaptive Optics Systems
Norbert Hubin; Claire E. Max; Peter L. Wizinowich, Editor(s)

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