Skip to main content

Research Repository

Advanced Search

Opto-mechanical designs for the HARMONI adaptive optics systems

Dohlen, Kjetil; Morris, Timothy; Piqueras Lopez, Javier; Calcines-Rosario, Ariadna; Costille, Anne; Dubbeldam, Marc; El Hadi, Kacem; Fusco, Thierry; Llored, Marc; Neichel, Benoit; Pascal, Sandrine; Sauvage, Jean-Francois; Vola, Pascal; Clarke, Fraser; Schnetler, Hermine; Bryson, Ian; Thatte, Niranjan

Opto-mechanical designs for the HARMONI adaptive optics systems Thumbnail


Kjetil Dohlen

Javier Piqueras Lopez

Anne Costille

Kacem El Hadi

Thierry Fusco

Marc Llored

Benoit Neichel

Sandrine Pascal

Jean-Francois Sauvage

Pascal Vola

Fraser Clarke

Hermine Schnetler

Ian Bryson

Niranjan Thatte


Laird M. Close

Laura Schreiber

Dirk Schmidt


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.


Dohlen, K., Morris, T., Piqueras Lopez, J., Calcines-Rosario, A., Costille, A., Dubbeldam, M., …Thatte, N. (2018). Opto-mechanical designs for the HARMONI adaptive optics systems. In L. M. Close, L. Schreiber, & D. Schmidt (Eds.), Proceedings Volume 10703, Adaptive Optics Systems VI.

Conference Name Adaptive Optics Systems VI: SPIE Astronomical Telescopes + Instrumentation 2018
Conference Location Austin, Texas
Online Publication Date Jul 17, 2018
Publication Date 2018
Deposit Date Sep 25, 2018
Publicly Available Date Jan 17, 2023
Publisher SPIE
Volume 10703
Book Title Proceedings Volume 10703, Adaptive Optics Systems VI
ISBN 9781510619593
Public URL


Published Conference Proceeding (808 Kb)

Copyright 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.

You might also like

Downloadable Citations