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Opto-mechanical designs for the HARMONI Adaptive Optics systems
- Source :
- SPIE Astronomical Telescopes and Instrumenttion, Austin 2018, Tracking No. AS18-AS106-189
- Publication Year :
- 2018
-
Abstract
- 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.<br />Comment: 11 pages, 13 figures, conference
- Subjects :
- Astrophysics - Instrumentation and Methods for Astrophysics
Subjects
Details
- Database :
- arXiv
- Journal :
- SPIE Astronomical Telescopes and Instrumenttion, Austin 2018, Tracking No. AS18-AS106-189
- Publication Type :
- Report
- Accession number :
- edsarx.1807.00073
- Document Type :
- Working Paper