Adaptive optics with programmable Fourier-based wavefront sensors: a spatial light modulator approach to the LAM/ONERA on-sky pyramid sensor testbed
| Autor: | Yannick Abautret, Benoit Neichel, Kjetil Dohlen, Thierry Fusco, Charlotte Z. Bond, Kacem El-Hadi, Olivier Fauvarque, Lauren Schatz, Carlos Correia, Jean-François Sauvage, P. Janin-Potiron, Vincent Chambouleyron, Eduard Muslimov |
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| Přispěvatelé: | Joseph Louis LAGRANGE (LAGRANGE), Centre National de la Recherche Scientifique (CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA), DOTA, ONERA, Université Paris Saclay (COmUE) [Châtillon], ONERA-Université Paris Saclay (COmUE), Laboratoire d'Astrophysique de Marseille (LAM), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Centre National d'Études Spatiales [Toulouse] (CNES), University of Coimbra, University of Coimbra [Portugal] (UC), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Image formation
Zernike polynomials Computer science [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] 01 natural sciences adaptive optics 010309 optics symbols.namesake Optics 0103 physical sciences pyramid wavefront sensor Pyramid (image processing) Adaptive optics 010303 astronomy & astrophysics Instrumentation ComputingMilieux_MISCELLANEOUS Wavefront Spatial light modulator business.industry Mechanical Engineering spatial light modulator *Pierre Janin-Potiron: pierrejanin-potiron@lamfr Fourier-based wavefront sensors Astronomy and Astrophysics Wavefront sensor [PHYS.ASTR.SR]Physics [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR] Electronic Optical and Magnetic Materials [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM] Cardinal point Space and Planetary Science Control and Systems Engineering symbols business optical bench |
| Zdroj: | Journal of Astronomical Telescopes Instruments and Systems Journal of Astronomical Telescopes Instruments and Systems, Society of Photo-optical Instrumentation Engineers, 2019, 5 (03), pp.1. ⟨10.1117/1.JATIS.5.3.039001⟩ |
| ISSN: | 2329-4124 |
| Popis: | International audience; Wavefront sensors encode phase information of an incoming wavefront into an intensity pattern that can be measured on a camera. Several kinds of wavefront sensors (WFS) are used in astronomical adaptive optics. Amongst them, Fourier-based wavefront sensors perform a filtering operation on the wavefront in the focal plane. The most well known example of a WFS of this kind is the Zernike wavefront sensor, and the pyramid wavefront sensor (PWFS) also belongs to this class. Based on this same principle, new WFSs can be proposed such as the n-faced pyramid (which ultimately becomes an axicone) or the flattened pyramid, depending on whether the image formation is incoherent or coherent. In order to test such novel concepts, the LOOPS adaptive optics testbed hosted at the Laboratoire d'Astrophysique de Marseille has been upgraded by adding a Spatial Light Modulator (SLM). This device, placed in a focal plane produces high-definition phase masks that mimic otherwise bulk optic devices. In this paper, we first present the optical design and upgrades made to the experimental setup of the LOOPS bench. Then, we focus on the generation of the phase masks with the SLM and the implications of having such a device in a focal plane. Finally, we present the first closed-loop results in either static or dynamic mode with different WFS applied on the SLM. |
| Databáze: | OpenAIRE |
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