In this work we present the AO module of the future NIRPS spectrograph for the ESO 3.6 m telescope, that will be feed with multi-mode fibers. We converge to an AO system using a Shack-Hartmann wavefront sensor with 14x14 subapertures, able to feed 50% of the energy into a 0.4" fiber in the range of 0.98 to 1.8 μm for M-type stars as faint as I=12.
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U. Conod, N. Blind, F. Wildi, F. Pepe, "Adaptive optics for high resolution spectroscopy: a direct application with the future NIRPS spectrograph," Proc. SPIE 9909, Adaptive Optics Systems V, 990941 (27 July 2016);