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

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

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4494..181r&link_type=abstract

Proc. SPIE Vol. 4494, p. 181-187, Adaptive Optics Systems and Technology II, Robert K. Tyson; Domenico Bonaccini; Michael C. Rog

Physics

Optics

Scientific paper

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.

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