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Proceedings Paper

Laboratory validation of a laser shaping system before guide star projection
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Paper Abstract

Multiple sodium laser beacons are a crucial development in multi-conjugate adaptive optics systems that offers wide-field diffraction limited adaptive optics correction to the astronomical community. This correction is strongly dependent on the laser beam power and quality, so a beam shaping concept is currently being developed to speed-up calibration and alignment of the laser before every run. A method previously reported, has now been implemented on a laboratory bench using MEMS deformable mirrors. Necessary calibration and characterization of the deformable mirrors are described and the results for experimental amplitude correction are presented.

Paper Details

Date Published: 7 August 2014
PDF: 10 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91483I (7 August 2014); doi: 10.1117/12.2056062
Show Author Affiliations
Sebastián Zúñiga, Univ. Técnica Federico Santa María (Chile)
Clémentine Béchet, Pontificia Univ. Católica de Chile (Chile)
Héctor González-Núñez, Pontificia Univ. Católica de Chile (Chile)
Benoit Neichel, Lab. d'Astrophysique de Marseille, CNRS, Aix Marseille Univ. (France)
Gemini Observatory Southern Operations Ctr. (Chile)
Vincent Fesquet, Gemini Observatory Southern Operations Ctr. (Chile)
Vincent Garrel, Gemini Observatory Southern Operations Ctr. (Chile)
Pedro Escárate, Univ. Técnica Federico Santa María (Chile)
Mario Castro, Univ. Técnica Federico Santa María (Chile)
Dani Guzmán, Pontificia Univ. Católica de Chile (Chile)
Andrés Guesalaga, Pontificia Univ. Católica de Chile (Chile)


Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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