Laboratory validation of a laser shaping system before guide star projection

Zúñiga Fernández, Sebastián Gaspar; Béchet, Clémentine; González-Núñez, Héctor; Neichel, Benoit; Fesquet, Vincent; Garrel, Vincent; Escárate, Pedro; Castro, Mario; Guzmán, Dani; Guesalaga, Andrés

doi:10.1117/12.2056062

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Laboratory validation of a laser shaping system before guide star projection

Zúñiga Fernández, Sebastián Gaspar; Béchet, Clémentine; González-Núñez, Héctor et al.

2014 • In Veran, Jean-Pierre (Ed.) Adaptive Optics Systems IV

Editorial reviewed

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https://hdl.handle.net/2268/310325

DOI
10.1117/12.2056062

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Keywords :

deformable mirrors; laser beam shaping; optical field conjugation; phase retrieval; Amplitude correction; Astronomical community; Deformable mirrors; Laser beam shaping; MEMS deformable mirror; Multi-conjugate adaptive optics systems; Optical field; Phase retrieval; Electronic, Optical and Magnetic Materials; Condensed Matter Physics; Computer Science Applications; Applied Mathematics; Electrical and Electronic Engineering

Abstract :

[en] 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.

Disciplines :

Electrical & electronics engineering

Author, co-author :

Zúñiga Fernández, Sebastián Gaspar ; Universidad Técnica Federico Santa María, Valparaíso, Chile

Béchet, Clémentine; Pontificia Universidad Católica de Chile, Santiago, Chile

González-Núñez, Héctor; Pontificia Universidad Católica de Chile, Santiago, Chile

Neichel, Benoit; Aix Marseille Université, CNRS, Laboratoire d'Astrophysique de Marseille, Marseille, France ; Gemini Observatory Southern Operations Center, La-Serena, Chile

Fesquet, Vincent; Gemini Observatory Southern Operations Center, La-Serena, Chile

Garrel, Vincent; Gemini Observatory Southern Operations Center, La-Serena, Chile

Escárate, Pedro; Universidad Técnica Federico Santa María, Valparaíso, Chile

Castro, Mario; Universidad Técnica Federico Santa María, Valparaíso, Chile

Guzmán, Dani; Pontificia Universidad Católica de Chile, Santiago, Chile

Guesalaga, Andrés; Pontificia Universidad Católica de Chile, Santiago, Chile

Language :

English

Title :

Laboratory validation of a laser shaping system before guide star projection

Publication date :

2014

Event name :

SPIE Astronomical Telescopes + Instrumentation

Event organizer :

SPIE

Event place :

Montreal, Canada

Event date :

22-06-2014 => 27-06-2014

Audience :

International

Main work title :

Adaptive Optics Systems IV

Editor :

Veran, Jean-Pierre

Publisher :

SPIE

ISBN/EAN :

978-0-8194-9616-4

Peer reviewed :

Editorial reviewed

Funders :

SPIE - Society of Photo-Optical Instrumentation Engineers [US-WA]

Available on ORBi :

since 25 December 2023

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