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Proceedings Paper

20-W and 50-W solid-state sodium beacon guidestar laser systems for the Keck I and Gemini South telescopes
Author(s): Allen K. Hankla; Jarett Bartholomew; Ken Groff; Ian Lee; Iain T. McKinnie; Grant Moule; Nathan Rogers; Bruce Tiemann; Allen J. Tracy; Paul VanHoudt; Sean M. Adkins; Céline d'Orgeville
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Paper Abstract

Lockheed Martin Coherent Technologies (LMCT) is developing 20 W and 50 W commercial solid-state sodium beacon Guidestar Laser Systems (GLS) for the Keck I and Gemini South telescopes, respectively. This work represents a critical step toward addressing the need of the astronomical adaptive optics (AO) community for a standardized, robust, turn-key, commercial GLS that can be configured for different observatory facilities and for different AO formats - including multi-conjugate AO (MCAO) and future extremely large telescopes. These modular systems build on the proven laser technologies, user-friendly interface, and low maintenance design that were developed for the successful 12 W GLS delivered by LMCT to the Gemini North telescope in February 2005. This paper describes the GLS requirements for the Keck I and Gemini South telescopes, the design of the laser oscillators, amplifiers, sum-frequency generator, and diagnostics; the functionality of the automated remote laser control system; size, weight, power, and performance data; and the current status of the programs.

Paper Details

Date Published: 28 June 2006
PDF: 9 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 62721G (28 June 2006); doi: 10.1117/12.670054
Show Author Affiliations
Allen K. Hankla, Lockheed Martin Coherent Technologies, Inc. (United States)
Jarett Bartholomew, Lockheed Martin Coherent Technologies, Inc. (United States)
Ken Groff, Lockheed Martin Coherent Technologies, Inc. (United States)
Ian Lee, Lockheed Martin Coherent Technologies, Inc. (United States)
Iain T. McKinnie, Lockheed Martin Coherent Technologies, Inc. (United States)
Grant Moule, Lockheed Martin Coherent Technologies, Inc. (United States)
Nathan Rogers, Lockheed Martin Coherent Technologies, Inc. (United States)
Bruce Tiemann, Lockheed Martin Coherent Technologies, Inc. (United States)
Allen J. Tracy, Lockheed Martin Coherent Technologies, Inc. (United States)
Paul VanHoudt, Lockheed Martin Coherent Technologies, Inc. (United States)
Sean M. Adkins, W.M. Keck Observatory (United States)
Céline d'Orgeville, Gemini Observatory (United States)


Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

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