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13 September 2012 Curvature wavefront sensing performance simulations for active correction of the Javalambre wide-field telescopes
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Abstract
In order to maintain image quality during Javalambre wide field telescope operations, deformations and rigid body motions must be actively controlled to minimize optical disturbances. For JST/T250 the aberrations of the telescope will be measured with four curvature sensors at the focal plane. To correct the measured distortions, the secondary mirror position (with a hexapod support) and the camera position can be modified in a control closed loop. Multiple software tools have been developed to accomplish this goal, constituting the "Observatorio Astrofísico de Javalambre" (OAJ) Active Optics Pipeline. We present a comprehensive analysis of the wave-front sensing system, including the availability of reference stars, pupil registration, wavefront estimators and the iteration matrix evaluation techniques. Some preliminary simulations have been made using a telescope model with a Optical Ray Tracing Software.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sergio Chueca, Antonio Marín-Franch, Andrés Javier Cenarro, Jesús Varela, Alessandro Ederoclite, David Cristóbal-Hornillos, Carlos Hernández-Monteagudo, Nicolás Gruel, Mariano Moles, Axel Yanes, Fernando Rueda, Sergio Rueda, Roberto Luis-Simoes, Javier Hernández-Fuertes, Angel López-Sainz, Natalio Maícas-Sacristán, José Luis Lamadrid, Miguel Chioare Díaz-Martín, and Keith Taylor "Curvature wavefront sensing performance simulations for active correction of the Javalambre wide-field telescopes", Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84500I (13 September 2012); https://doi.org/10.1117/12.925429
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