The adaptive optics modes for HARMONI: from Classical to Laser Assisted Tomographic AO

B. Neichel; T. Fusco; J.-F. Sauvage; C. Correia; K. Dohlen; K. El-Hadi; L. Blanco; N. Schwartz; F. Clarke; N. A. Thatte; M. Tecza; J. Paufique; J. Vernet; M. Le Louarn; P. Hammersley; J.-L. Gach; S. Pascal; P. Vola; C. Petit; J.-M. Conan; A. Carlotti; C. Vérinaud; H. Schnetler; I. Bryson; T. Morris; R. Myers; E. Hugot; A. M. Gallie; David M. Henry

doi:10.1117/12.2231681

26 July 2016 The adaptive optics modes for HARMONI: from Classical to Laser Assisted Tomographic AO

B. Neichel, T. Fusco, J.-F. Sauvage, C. Correia, K. Dohlen, K. El-Hadi, L. Blanco, N. Schwartz, F. Clarke, N. A. Thatte, M. Tecza, J. Paufique, J. Vernet, M. Le Louarn, P. Hammersley, J.-L. Gach, S. Pascal, P. Vola, C. Petit, J.-M. Conan, A. Carlotti, C. Vérinaud, H. Schnetler, I. Bryson, T. Morris, R. Myers, E. Hugot, A. M. Gallie, David M. Henry

Author Affiliations +

Proceedings Volume 9909, Adaptive Optics Systems V; 990909 (2016) https://doi.org/10.1117/12.2231681
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

HARMONI is a visible and NIR integral field spectrograph, providing the E-ELT’s core spectroscopic capability at first light. HARMONI will work at the diffraction limit of the E-ELT, thanks to a Classical and a Laser Tomographic AO system. In this paper, we present the system choices that have been made for these SCAO and LTAO modules. In particular, we describe the strategy developed for the different Wave-Front Sensors: pyramid for SCAO, the LGSWFS concept, the NGSWFS path, and the truth sensor capabilities. We present first potential implementations. And we asses the first system performance.

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B. Neichel, T. Fusco, J.-F. Sauvage, C. Correia, K. Dohlen, K. El-Hadi, L. Blanco, N. Schwartz, F. Clarke, N. A. Thatte, M. Tecza, J. Paufique, J. Vernet, M. Le Louarn, P. Hammersley, J.-L. Gach, S. Pascal, P. Vola, C. Petit, J.-M. Conan, A. Carlotti, C. Vérinaud, H. Schnetler, I. Bryson, T. Morris, R. Myers, E. Hugot, A. M. Gallie, and David M. Henry "The adaptive optics modes for HARMONI: from Classical to Laser Assisted Tomographic AO", Proc. SPIE 9909, Adaptive Optics Systems V, 990909 (26 July 2016); https://doi.org/10.1117/12.2231681

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