Comparison between observation and simulation of sodium LGS return flux with a 20W CW laser on Tenerife

R. Holzlöhner; D. Bonaccini Calia; D. Bello; D. Budker; M. Centrone; I. Guidolin; W. Hackenberg; S. Lewis; G. Lombardi; I. Montilla; F. Pedichini; F. Pedreros Bustos; T. Pfrommer; M. Reyes Garcia Talavera; S. Rochester

doi:10.1117/12.2233072

27 July 2016 Comparison between observation and simulation of sodium LGS return flux with a 20W CW laser on Tenerife

R. Holzlöhner, D. Bonaccini Calia, D. Bello, D. Budker, M. Centrone, I. Guidolin, W. Hackenberg, S. Lewis, G. Lombardi, I. Montilla, F. Pedichini, F. Pedreros Bustos, T. Pfrommer, M. Reyes Garcia Talavera, S. Rochester

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Proceedings Volume 9909, Adaptive Optics Systems V; 99095E (2016) https://doi.org/10.1117/12.2233072
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

We report on the comparison between observations and simulations of a completed 12-month field observation campaign at Observatorio del Teide, Tenerife, using ESO's transportable 20 watt CW Wendelstein laser guide star system. This mission has provided sodium photon return flux measurements of unprecedented detail regarding variation of laser power, polarization and sodium D_2b repumping. The Raman fiber laser and projector technology are very similar to that employed in the 4LGSF/AOF laser facility, recently installed and commissioned at the VLT in Paranal. The simulations are based on the open source LGSBloch density matrix simulation package and we find good overall agreement with experimental data.

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R. Holzlöhner, D. Bonaccini Calia, D. Bello, D. Budker, M. Centrone, I. Guidolin, W. Hackenberg, S. Lewis, G. Lombardi, I. Montilla, F. Pedichini, F. Pedreros Bustos, T. Pfrommer, M. Reyes Garcia Talavera, and S. Rochester "Comparison between observation and simulation of sodium LGS return flux with a 20W CW laser on Tenerife", Proc. SPIE 9909, Adaptive Optics Systems V, 99095E (27 July 2016); https://doi.org/10.1117/12.2233072

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