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Proceedings Paper

Polychromatic guide star
Author(s): 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
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Paper 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.

Paper Details

Date Published: 14 September 1998
PDF: 11 pages
Proc. SPIE 3343, High-Power Laser Ablation, (14 September 1998); doi: 10.1117/12.321566
Show Author Affiliations
Renaud Foy, CRAL/Observatoire de Lyon (France)
Michel Tallon, CRAL/Observatoire de Lyon (France)
Herbert W. Friedman, Lawrence Livermore National Lab. (United States)
Andre Baranne, Observatoire de Marseille (France)
Francois Biraben, Ecole Normale Superieure (France)
Gilbert Grynberg, Ecole Normale Superieure (France)
Miska Le Louarn, CRAL/Observatoire de Lyon and European Southern Observatory (Germany)
Alain Denis Petit, CEA/Saclay (France)
Jean-Marc Weulersse, CEA/Saclay (France)
Arnold Migus, LULI/Ecole Polytechnique (France)
Jean-Pierre Gex, CEA/Saclay (France)


Published in SPIE Proceedings Vol. 3343:
High-Power Laser Ablation
Claude R. Phipps, Editor(s)

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