7 August 2014 Laboratory validation of a laser shaping system before guide star projection
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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.
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Sebastián Zúñiga, Sebastián Zúñiga, Clémentine Béchet, Clémentine Béchet, Héctor González-Núñez, Héctor González-Núñez, Benoit Neichel, Benoit Neichel, Vincent Fesquet, Vincent Fesquet, Vincent Garrel, Vincent Garrel, Pedro Escárate, Pedro Escárate, Mario Castro, Mario Castro, Dani Guzmán, Dani Guzmán, Andrés Guesalaga, Andrés Guesalaga, } "Laboratory validation of a laser shaping system before guide star projection", Proc. SPIE 9148, Adaptive Optics Systems IV, 91483I (7 August 2014); doi: 10.1117/12.2056062; https://doi.org/10.1117/12.2056062
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