On-sky verification of a solution to the MCAO partial illumination issue and wind-predictive wavefront control

K. K. R. Santhakumari; C. Arcidiacono; T. Bertram; T. M. Herbst; R. Ragazzoni; J. Berwein; M. Klettke; F. Briegel

doi:10.1117/12.2313235

11 July 2018 On-sky verification of a solution to the MCAO partial illumination issue and wind-predictive wavefront control

K. K. R. Santhakumari, C. Arcidiacono, T. Bertram, T. M. Herbst, R. Ragazzoni, J. Berwein, M. Klettke, F. Briegel

Author Affiliations +

Proceedings Volume 10703, Adaptive Optics Systems VI; 107035L (2018) https://doi.org/10.1117/12.2313235
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

We have tested and confirmed the proper functioning of our solution to the MCAO partial illumination issue in the context of the LINC-NIRVANA (LN) MCAO module, both in the laboratory and on-sky. We present the results in this paper. Availability of direct AO-telemetry for individual layers from the LN MCAO system can be potentially used to improve not only the stability of the independent AO loops, but also the wavefront sensor efficiency. We introduce this idea, called “wind-predictive wavefront control."

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K. K. R. Santhakumari, C. Arcidiacono, T. Bertram, T. M. Herbst, R. Ragazzoni, J. Berwein, M. Klettke, and F. Briegel "On-sky verification of a solution to the MCAO partial illumination issue and wind-predictive wavefront control", Proc. SPIE 10703, Adaptive Optics Systems VI, 107035L (11 July 2018); https://doi.org/10.1117/12.2313235

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