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13 December 2020 First results of laboratory tests of a three-sided pyramid wavefront sensor
Lauren Schatz, Jared Males, Johanan Codona, Weslin Pullen, Michael Hart, Jennifer Lumbres, Benoit Neichel, Carlos Correia, Thierry Fusco, Vincent Chambouleyron, Pierre Janin-Poitron, Kyle Van Gorkom, Mala Mateen, Joseph D Long, Chris Bohlman, Olivier Favarque
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Proceedings Volume 11448, Adaptive Optics Systems VII; 114481R (2020) https://doi.org/10.1117/12.2562673
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only
Abstract
Within the next decade the Extremely Large Telescopes [ELTs] with diameters up to 40m will see first light. To optimize a high contrast pyramid wavefront sensor for an ELT extreme adaptive optics system, we are developing the theoretical framework of a three-sided pyramid wavefront sensor (3PWFS). The 3PWFS should have a higher photon efficiency and therefore be more sensitive to wavefront aberrations than the traditional four-sided pyramid wavefront sensor (4PWFS) in the presence of noise. In this paper we present results from end-to-end simulations, and from test benches at the Laboratoire d’Astrophysique de Marseille, and the University of Arizona.
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Lauren Schatz, Jared Males, Johanan Codona, Weslin Pullen, Michael Hart, Jennifer Lumbres, Benoit Neichel, Carlos Correia, Thierry Fusco, Vincent Chambouleyron, Pierre Janin-Poitron, Kyle Van Gorkom, Mala Mateen, Joseph D Long, Chris Bohlman, and Olivier Favarque "First results of laboratory tests of a three-sided pyramid wavefront sensor", Proc. SPIE 11448, Adaptive Optics Systems VII, 114481R (13 December 2020); https://doi.org/10.1117/12.2562673
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KEYWORDS
Wavefront sensors
Adaptive optics
Control systems
Coronagraphy
Large telescopes
MATLAB
Optical testing
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