14 September 1998 Polychromatic guide star
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Proceedings Volume 3343, High-Power Laser Ablation; (1998); doi: 10.1117/12.321566
Event: High-Power Laser Ablation, 1998, Santa Fe, NM, United States
Abstract
We describe the principle of the polychromatic laser guide star (LGS) to recover the tilt information in imaging through the atmosphere. Observations using the AVLIS laser at the Lawrence Livermore National Lab are discussed in terms of returned flux in the ultraviolet. The major items of the program ELP-OA, starting now in France, are briefly reviewed, as well as the organization of the LGS R&D in Europe. Finally the conclusion outlines the possible improvements of the polychromatic LGS to allow us to reasonably implement it at large astronomical telescopes.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Renaud Foy, Michel Tallon, Herbert W. Friedman, Andre Baranne, Francois Biraben, Gilbert Grynberg, Miska Le Louarn, Alain Denis Petit, Jean-Marc Weulersse, Arnold Migus, Jean-Pierre Gex, "Polychromatic guide star", Proc. SPIE 3343, High-Power Laser Ablation, (14 September 1998); doi: 10.1117/12.321566; https://doi.org/10.1117/12.321566
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KEYWORDS
Telescopes

Adaptive optics

Stars

Laser guide stars

Sodium

Atmospheric optics

Wavefronts

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