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

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

doi:10.1117/12.2312838

11 July 2018 Near-infrared pyramid wavefront sensor for Keck adaptive optics: opto-mechanical design

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

Author Affiliations +

Proceedings Volume 10703, Adaptive Optics Systems VI; 107033G (2018) https://doi.org/10.1117/12.2312838
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

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.

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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, and 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); https://doi.org/10.1117/12.2312838

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