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Opto-mechanical designs for the HARMONI adaptive optics systems

Dohlen, Kjetil and Morris, Timothy and Piqueras Lopez, Javier and Calcines-Rosario, Ariadna and Costille, Anne and Dubbeldam, Marc and El Hadi, Kacem and Fusco, Thierry and Llored, Marc and Neichel, Benoit and Pascal, Sandrine and Sauvage, Jean-Francois and Vola, Pascal and Clarke, Fraser and Schnetler, Hermine and Bryson, Ian and Thatte, Niranjan (2018) 'Opto-mechanical designs for the HARMONI adaptive optics systems.', in Proceedings Volume 10703, Adaptive Optics Systems VI. .


HARMONI is a visible and near-infrared integral field spectrograph equipped with two complementary adaptive optics systems, fully integrated within the instrument. A Single Conjugate AO (SCAO) system offers high performance for a limited sky coverage and a Laser Tomographic AO (LTAO) system provides AO correction with a very high sky-coverage. While the deformable mirror performing real-time correction of the atmospheric disturbances is located within the telescope itself, the instrument contains a suite of state-of-the-art and innovative wavefront sensor systems. Laser guide star sensors (LGSS) are located at the entrance of the instrument and fed by a dichroic beam splitter, while the various natural guide star sensors for LTAO and SCAO are located close to the science focal plane. We present opto-mechanical architecture and design at PDR level for these wavefront sensor 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:17 July 2018
Date first made open access:17 January 2023

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