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Near-infrared pyramid wavefront sensor for Keck adaptive optics: opto-mechanical design
Author(s): Scott J. Lilley; Peter Wizinowich; Dimitri Mawet; Mark Chun; Charlotte Z. Bond; James K. Wallace; Nemanja Jovanovic; Jacques-Robert Delorme; Shane M. Jacobson; Mojtaba Taheri; Adam Vandenberg
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Paper Abstract

A near-infrared, high order pyramid wavefront sensor will be implemented on the Keck telescope, with the aim of providing high resolution adaptive optics correction for the study of exoplanets around M-type stars and planet formation in obscured star forming regions. The pyramid wavefront sensor is designed to support adaptive optics correction of the light to an imaging vortex coronagraph and to a fiber injection unit that will feed a spectrograph. We present the opto-mechanical design of the near-infrared pyramid wavefront sensor, the optical performance, and the alignment strategy. The challenges of designing the assembly, as well as a fiber injection unit, to fit into the limited available space on the Keck adaptive optics bench, will also be discussed.

Paper Details

Date Published: 11 July 2018
PDF: 13 pages
Proc. SPIE 10703, Adaptive Optics Systems VI, 107033G (11 July 2018); doi: 10.1117/12.2312838
Show Author Affiliations
Scott J. Lilley, W. M. Keck Observatory (United States)
Peter Wizinowich, W. M. Keck Observatory (United States)
Dimitri Mawet, Caltech (United States)
Mark Chun, Institute for Astronomy, Univ. Hawai'i (United States)
Charlotte Z. Bond, Institute for Astronomy, Univ. Hawai'i (United States)
James K. Wallace, Jet Propulsion Lab. (United States)
Nemanja Jovanovic, Caltech (United States)
Jacques-Robert Delorme, Caltech (United States)
Shane M. Jacobson, Institute for Astronomy, Univ. Hawai'i (United States)
Mojtaba Taheri, National Research Council Canada (Canada)
Adam Vandenberg, W. M. Keck Observatory (United States)

Published in SPIE Proceedings Vol. 10703:
Adaptive Optics Systems VI
Laird M. Close; Laura Schreiber; Dirk Schmidt, Editor(s)

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