Subaru Coronagraphic eXtreme Adaptive Optics: On-sky performance of the asymmetric pupil Fourier wavefront sensor

Frantz Martinache, Nemanja Jovanovic, Olivier Guyon

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

    2 Citations (Scopus)

    Abstract

    The Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) instrument relies on a technique known as the asymmetric pupil Fourier wavefront sensor (APF-WFS) to compensate for the non-common path error that affects the performance of high contrast imaging instruments. The APF-WFS is a powerful tool that senses the wavefront at the level of the science detector, and leads to unbiased wavefront estimates. This paper presents the latest status, linearity properties and reports on the on-sky performance of this sensor, as it is implemented on SCExAO, used to control low-order Zernike modes in a close-loop system.

    Original languageEnglish
    Title of host publicationAdaptive Optics Systems V
    EditorsEnrico Marchetti, Laird M. Close, Jean-Pierre Véran
    Place of PublicationBellingham, WA
    PublisherSPIE
    Pages990954-1-990954-5
    Number of pages5
    ISBN (Electronic)9781510601987
    ISBN (Print)9781510601970
    DOIs
    Publication statusPublished - 2016
    EventAdaptive Optics Systems V - Edinburgh, United Kingdom
    Duration: 26 Jun 20161 Jul 2016

    Publication series

    NameProceedings of SPIE
    PublisherSPIE
    Volume9909
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Other

    OtherAdaptive Optics Systems V
    Country/TerritoryUnited Kingdom
    CityEdinburgh
    Period26/06/161/07/16

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