Non-linear curvature wavefront sensor for extremely large telescopes

Mala Mateen, Olivier Guyon, José Sasián, Vincent Garrel, Michael Hart

Research output: Contribution to conferencePaperpeer-review

Abstract

In this paper we present quantitative results that show the superior sensitivity of the non-linear curvature wavefront sensor (nlCWFS) compared to the Shack-Hartmann wavefront sensor (SHWFS) and the modulated pyramid wavefront sensor (MPYWFS) for low and high order aberrations. We explain the design for the chromatic re-imaging optics (CRO) that introduces chromatic compensation which prevents broad band speckles from suffering chromatic aberration. We show results from the CRO built for one of the four channels of the nlCWFS design.

Original languageEnglish (US)
StatePublished - Jan 1 2011
Event2nd International Conference on Adaptive Optics for Extremely Large Telescopes, AO for ELT 2011 - Victoria, BC, Canada
Duration: Sep 25 2011Sep 30 2011

Other

Other2nd International Conference on Adaptive Optics for Extremely Large Telescopes, AO for ELT 2011
CountryCanada
CityVictoria, BC
Period9/25/119/30/11

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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