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Near-infrared pyramid wavefront sensor for Keck adaptive optics: opto-mechanical design

Lilley, Scott J. and Wizinowich, Peter and Mawet, Dimitri and Chun, Mark and Cond, Charlotte Z. and Wallace, James K. and Jovanovic, Nemanja and Delorme, Jacques-Robert and Jacobson, Shane M. and Taheri, Mojtaba and Vandenberg, Adam (2018) Near-infrared pyramid wavefront sensor for Keck adaptive optics: opto-mechanical design. In: Adaptive Optics Systems VI. Proceedings of SPIE. No.10703. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 107033G. ISBN 9781510619593.

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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.

Item Type:Book Section
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URLURL TypeDescription
Wizinowich, Peter0000-0002-1646-442X
Mawet, Dimitri0000-0002-8895-4735
Additional Information:© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE). The near-infrared pyramid wavefront sensor is supported by the National Science Foundation under Grant No. AST-1611623. The camera used with the pyramid wavefront sensor is provided by Don Hall with support by the National Science Foundation under Grant No. AST-1106391. The fiber injection unit is supported by the Heising-Simons Foundation. The W. M. Keck Observatory is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The authors wish to recognize and acknowledge the very significant cultural role and reverence that the summit of Maunakea has always had within the indigenous Hawaiian community. We are most fortunate to have the opportunity to conduct observations from this mountain
Group:Astronomy Department
Funding AgencyGrant Number
Heising-Simons FoundationUNSPECIFIED
W. M. Keck FoundationUNSPECIFIED
Subject Keywords:AO, KPIC, near-infrared pyramid wavefront sensor
Series Name:Proceedings of SPIE
Issue or Number:10703
Record Number:CaltechAUTHORS:20180712-154840322
Persistent URL:
Official Citation: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, "Near-infrared pyramid wavefront sensor for Keck adaptive optics: opto-mechanical design", Proc. SPIE 10703, Adaptive Optics Systems VI, 107033G (11 July 2018); doi: 10.1117/12.2312838;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87814
Deposited By: George Porter
Deposited On:13 Jul 2018 17:12
Last Modified:15 Nov 2021 20:52

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