21 July 2014 NFIRAOS: first facility AO system for the Thirty Meter Telescope
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Abstract
NFIRAOS, the Thirty Meter Telescope’s first adaptive optics system is an order 60x60 Multi-Conjugate AO system with two deformable mirrors. Although most observing will use 6 laser guide stars, it also has an NGS-only mode. Uniquely, NFIRAOS is cooled to -30 °C to reduce thermal background. NFIRAOS delivers a 2-arcminute beam to three client instruments, and relies on up to three IR WFSs in each instrument. We present recent work including: robust automated acquisition on these IR WFSs; trade-off studies for a common-size of deformable mirror; real-time computing architectures; simplified designs for high-order NGS-mode wavefront sensing; modest upgrade concepts for high-contrast imaging.
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Glen Herriot, Glen Herriot, David Andersen, David Andersen, Jenny Atwood, Jenny Atwood, Corinne Boyer, Corinne Boyer, Peter Byrnes, Peter Byrnes, Kris Caputa, Kris Caputa, Brent Ellerbroek, Brent Ellerbroek, Luc Gilles, Luc Gilles, Alexis Hill, Alexis Hill, Zoran Ljusic, Zoran Ljusic, John Pazder, John Pazder, Matthias Rosensteiner, Matthias Rosensteiner, Malcolm Smith, Malcolm Smith, Paolo Spano, Paolo Spano, Kei Szeto, Kei Szeto, Jean-Pierre Véran, Jean-Pierre Véran, Ivan Wevers, Ivan Wevers, Lianqi Wang, Lianqi Wang, Robert Wooff, Robert Wooff, "NFIRAOS: first facility AO system for the Thirty Meter Telescope", Proc. SPIE 9148, Adaptive Optics Systems IV, 914810 (21 July 2014); doi: 10.1117/12.2055525; https://doi.org/10.1117/12.2055525
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