27 July 2016 An achromatic low-order wavefront sensor
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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).
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Denis Brousseau, Denis Brousseau, Guillaume Allain, Guillaume Allain, Simon Thibault, Simon Thibault, Jean-Pierre Véran, Jean-Pierre Véran, } "An achromatic low-order wavefront sensor", Proc. SPIE 9909, Adaptive Optics Systems V, 99096I (27 July 2016); doi: 10.1117/12.2233096; https://doi.org/10.1117/12.2233096
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