Laboratory and telescope demonstration of the TP3-WFS for the adaptive optics segment of AOLI
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AuthorColodro Conde, Carlos; Toledo Moreo, Rafael; Fernández Valdivia Juan José; López López, Roberto; Oscoz Abad, Alejandro; [et al.]
Knowledge AreaArquitectura y Tecnología de Computadoras
SponsorsThis work was supported by the Spanish Ministry of Economy under the projects AYA2011-29024, ESP2014-56869-C2-2-P, ESP2015-69020-C2-2-R and DPI2015-66458-C2-2-R, by project 15345/PI/10 from the Fundación Séneca, by the Spanish Ministry of Education under the grant FPU12/05573, by project ST/K002368/1 from the Science and Technology Facilities Council and by ERDF funds from the European Commission. The results presented in this paper are based on observations made with the William Herschel Telescope operated on the island of La Palma by the Isaac Newton Group in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias. Special thanks go to Lara Monteagudo and Marcos Pellejero for their timely contributions.
Bibliographic CitationCOLODRO CONCE, Carlos et al. Laboratory and telescope demonstration of the TP3-WFS for the adaptive optics segment of AOLI. In: Monthly Notices of the Royal Astronomical Society 467.3 (Jun. 2017), pp. 2855–2868.
KeywordsInstrumentation: adaptive optics
Instrumentation: high angular resolution
AOLI (Adaptive Optics Lucky Imager) is a state-of-art instrument that combines adaptive optics (AO) and lucky imaging (LI) with the objective of obtaining diffraction limited images in visible wavelength at mid- and big-size ground-based telescopes. The key innovation of AOLI is the development and use of the new TP3-WFS (Two Pupil Plane PositionsWavefront Sensor). The TP3-WFS, working in visible band, represents an advance over classical wavefront sensors such as the Shack-Hartmann WFS (SH-WFS) because it can theoretically use fainter natural reference stars, which would ultimately provide better sky coverages to AO instruments using this newer sensor. This paper describes the software, algorithms and procedures that enabled AOLI to become the first astronomical instrument performing real-time adaptive optics corrections in a telescope with this new type of WFS, including the first control-related results at the William Herschel Telescope (WHT)
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