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Proceedings Paper

An achromatic low-order wavefront sensor
Author(s): Denis Brousseau; Guillaume Allain; Simon Thibault; Jean-Pierre Véran
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Paper Abstract

Many wavefront sensors have been developed over the years, but most are not well suited for the photon-limited regime of coronagraphs designed for 10-9 contrast ratios and small inner working angles (IWAs). To meet current coronagraphs low-order wavefront sensing requirements, it is essential to have a method that offers high sensitivity and preferably a linear response. We propose an innovative low-order wavefront sensor (LOWFS) design that is both achromatic and near free of non-common path aberrations (NCPAs).

Paper Details

Date Published: 27 July 2016
PDF: 6 pages
Proc. SPIE 9909, Adaptive Optics Systems V, 99096I (27 July 2016); doi: 10.1117/12.2233096
Show Author Affiliations
Denis Brousseau, Univ. Laval (Canada)
Guillaume Allain, Univ. Laval (Canada)
Simon Thibault, Univ. Laval (Canada)
Jean-Pierre Véran, NRC Herzberg (Canada)

Published in SPIE Proceedings Vol. 9909:
Adaptive Optics Systems V
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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