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A phase-shifting Zernike wavefront sensor for the Palomar P3K Adaptive Optics System

A phase-shifting Zernike wavefront sensor for the Palomar P3K Adaptive Optics System

Wallace, J. Kent; Crawford, Sam; Loya, Frank; Moore, James
URI: http://hdl.handle.net/2014/42392
Date: 2012-07-01
Keywords: adaptive optics; wavefront sensing
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.
Citation: SPIE Astronomical Telescopes+Instrumentation, Amsterdam, Netherlands, July 1-6, 2012

Abstract:

A phase-shifting Zernike wavefront sensor has distinct advantages over other types of wavefront sensors. Chief among them are: 1) improved sensitivity to low-order aberrations and 2) efficient use of photons (hence reduced sensitivity to photon noise). We are in the process of deploying a phase-shifting Zernike wavefront sensor to be used with the realtime adaptive optics system for Palomar. Here we present the current state of the Zernike wavefront sensor to be integrated into the high-order adaptive optics system at Mount Palomar’s Hale Telescope.

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