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Post-coronagraph wavefront sensor for Gemini Planet Imager

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dc.contributor.author Wallace, J. Kent
dc.contributor.author Burruss, Rick
dc.contributor.author Pueyoa, Laurent
dc.contributor.author Soummer, Remi
dc.contributor.author Shelton, Chris
dc.contributor.author Bartos, Randall
dc.contributor.author Fregoso, Felipe
dc.contributor.author Nemati, Bijan
dc.contributor.author Best, Paul
dc.contributor.author Angione, John
dc.date.accessioned 2014-09-03T21:51:26Z
dc.date.available 2014-09-03T21:51:26Z
dc.date.issued 2009-08-02
dc.identifier.citation SPIE Nanoscience and Engineering Symposium, San Diego, California, August 2-3, 2009 en_US
dc.identifier.clearanceno 09-2728
dc.identifier.uri http://hdl.handle.net/2014/44673
dc.description.abstract The calibration wavefront system for the Gemini Planet Imager1 (GPI) will measure the complex wavefront at the apodized pupil and provide slow phase errors to the AO system to mitigate against image plane speckles that would cause a loss in contrast. This talk describes both the low-order and high-order sensors in the calibration wavefront sensor and how the information is combined to form the wavefront estimate before the coronagraph. We will show laboratory results from our calibration testbed that demonstrate the subsystem performance at levels commensurate with those required on the final instrument. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2009 en_US
dc.subject interferometry en_US
dc.subject planet detection en_US
dc.title Post-coronagraph wavefront sensor for Gemini Planet Imager en_US
dc.type Presentation en_US


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