Opto-mechanical designs for the HARMONI adaptive optics systems

Conference item

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.

Authors: Dohlen, K; Morris, T; Piqueras Lopez, J; Calcines-Rosario, A; Costille, A

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: SPIE
• Host title: Proceedings of SPIE
• Journal: Proceedings of SPIE
• Volume: 10703
• Article number: 107033X
• Publication date: 2018-07-17
• Acceptance date: 2018-06-09
• DOI: 10.1117/12.2313651
• EISSN: 1996-756X
• ISSN: 0277-786X
• Keywords: FFR