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Proceedings Paper

Pyramid wavefront sensor aboard AdOpt@TNG and beyond: a status report
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Paper Abstract

The concept of Pyramid Wavefront sensor has been introduced as a more compact and flexible alternative to Shack--Hartmann wavefront sensing. In the past five years, however, such a novel concept promised a much larger sensitivity and an inherent easiness to be implemented in a multiple reference wavefront sensor. AdOptTNG, a natural guide star based adaptive optics module implemented at the 3.5m TNG telescope is equipped with such a sensor. We report here on the updated status, including on-sky experimental verification of various of the several features of such a sensor. We discuss the results obtained, their scalability and the lessons learned in building, aligning and operating it. Some comparison with theoretical and laboratory-based result, is also tentatively reported.

Paper Details

Date Published: 4 February 2002
PDF: 7 pages
Proc. SPIE 4494, Adaptive Optics Systems and Technology II, (4 February 2002); doi: 10.1117/12.454791
Show Author Affiliations
Roberto Ragazzoni, Osservatorio Astronomico di Padova (Italy)
Simone Esposito, Osservatorio Astronomico di Arcetri (Italy)
Adriano Ghedina, Centro Galileo Galilei/CNAA (Spain)
Andrea Baruffolo, Osservatorio Astronomico di Padova (Italy)
Massimo Cecconi, Centro Galileo Galilei/CNAA (Italy)
Emiliano Diolaiti, Univ. degli Studi di Padova (Italy)
Jacopo Farinato, European Southern Observatory (Italy)
Luca Fini, Osservatorio Astronomico di Arcetri (Italy)
Enrico Marchetti, European Southern Observatory (Germany)
Alfio Puglisi, Osservatorio Astronomico di Arcetri (Italy)
Massimiliano Tordi, Osservatorio Astronomico di Padova (Italy)
Elise Vernet-Viard, Osservatorio Astronomico di Padova (Italy)

Published in SPIE Proceedings Vol. 4494:
Adaptive Optics Systems and Technology II
Robert K. Tyson; Domenico Bonaccini; Michael C. Roggemann, Editor(s)

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