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4 February 2002 Pyramid wavefront sensor aboard AdOpt@TNG and beyond: a status report
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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.
© (2002) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roberto Ragazzoni, Simone Esposito, Adriano Ghedina, Andrea Baruffolo, Massimo Cecconi, Emiliano Diolaiti, Jacopo Farinato, Luca Fini, Enrico Marchetti, Alfio Puglisi, Massimiliano Tordi, and Elise Vernet-Viard "Pyramid wavefront sensor aboard AdOpt@TNG and beyond: a status report", Proc. SPIE 4494, Adaptive Optics Systems and Technology II, (4 February 2002);


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