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Phase A AO system design and performance for MOSAIC at the ELT

Morris, Timothy and Basden, Alastair and Calcines-Rosario, Ariadna and Dohlen, Kjetil and Dubbeldam, Cornelis and El Hadi, Kacem and Fitzsimons, Ewan and Fusco, Thierry and Gendron, Éric and Hammer, François and Jagourel, Pascal and Jenkins, David and Morel, Carine and Morris, Simon and Rousset, Gérard and Townson, Matthew and Vola, Pascal and Younger, Edward (2018) 'Phase A AO system design and performance for MOSAIC at the ELT.', in Proceedings Volume 10703, Adaptive Optics Systems VI. .


MOSAIC is a mixed-mode multiple object spectrograph planned for the ELT that uses a tiled focal plane to support a variety of observing modes. The MOSAIC AO system uses 4 LGS WFS and up to 4 NGS WFS positioned anywhere within the full 10 arcminute ELT field of view to control either the ELT M4/5 alone for GLAO operation feeding up to 200 targets in the focal plane, or M4/5 in conjunction with 10 open-loop DMs for MOAO correction. In this paper we present the overall design and performance of the MOSAIC GLAO and MOAO systems.

Item Type:Book chapter
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Publisher statement:Copyright (2018) Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Date accepted:No date available
Date deposited:17 January 2023
Date of first online publication:13 July 2018
Date first made open access:17 January 2023

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