Curvature wavefront sensing performance simulations for active correction of the Javalambre wide-field telescopes

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; Keith Taylor

doi:10.1117/12.925429

13 September 2012 Curvature wavefront sensing performance simulations for active correction of the Javalambre wide-field telescopes

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, Keith Taylor

Author Affiliations +

Proceedings Volume 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II; 84500I (2012) https://doi.org/10.1117/12.925429
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

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.

Citation Download Citation

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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