On-sky test of the pyramid wavefront sensor

Ghedina, Adriano; Cecconi, Massimo; Ragazzoni, Roberto; Farinato, Jacopo; Baruffolo, Andrea; Crimi, Giuseppe; Diolaiti, Emiliano; Esposito, Simone; Fini, Luca; Ghigo, Mauro; Marchetti, Enrico; Niero, Tiziano; Puglisi, Alfio

doi:doi:10.1117/12.458962

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Proceedings / Volume 4839 / Wavefront Sensing II

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On-sky test of the pyramid wavefront sensor

Proc. SPIE 4839, 869 (2003); http://dx.doi.org/10.1117/12.458962

Thursday 22 August 2002

Waikoloa, HI, USA

Adaptive Optical System Technologies II

Peter L. Wizinowich, Domenico Bonaccini

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Abstract

Citing Articles (5)

Adriano Ghedina and Massimo Cecconi

Telescopio Nazionale Galileo (Spain)

Roberto Ragazzoni, Jacopo Farinato, Simone Esposito, Luca Fini, and Alfio Puglisi

Osservatorio Astrofisico di Arcetri (Italy)

Andrea Baruffolo, Emiliano Diolaiti, and Tiziano Niero

Osservatorio Astronomico di Padova (Italy)

Giuseppe Crimi

Osservatorio Astronomico di Brera (Italy)

Mauro Ghigo

Osservatorio Astrofisico di Brera (Italy)

Enrico Marchetti

European Southern Observatory (Germany)

The Adaptive Optics for the Telescopio Nazionale Galileo module (namely AdOpt@TNG) implements the pyramid wavefront sensor as a unique feature. This allows to get valuable information on its performance on the sky. An updated overview of the results obtainedso far is shown, including a discussion on the sources of errors in the closed loop operation, distinguishing them between the ones specific of the pyramid wavefront sensor and the one more related to the system as a whole. This system allows also for a number of experiments and check of the sensitivity of such a wavefront sensor, especially in comparison with other types of sensing units. The ways to accomplish such an experiment in a convincing way are shown along with the first results obtained so far. Finally, we describe how and up to which extent a number of practical problems encountered in the near past can be solved implementing the recent new ideas on the pyramid theme, many of which popped up from our "lessons learned".

History

Online Aug 11, 2003

Digital Object Identifier

http://dx.doi.org/10.1117/12.458962

Citation

Adriano Ghedina, Massimo Cecconi, Roberto Ragazzoni, Jacopo Farinato, Andrea Baruffolo, Giuseppe Crimi, Emiliano Diolaiti, Simone Esposito, Luca Fini, Mauro Ghigo, Enrico Marchetti, Tiziano Niero and Alfio Puglisi, "On-sky test of the pyramid wavefront sensor", Proc. SPIE 4839, 869 (2003); http://dx.doi.org/10.1117/12.458962