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Proceedings Paper

Modeling of the Thirty-Meter-Telescope matched-filter-based LGS wavefront sensing
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Paper Abstract

The Adaptive Optics Laboratory of the University of Victoria has built a LGS SH-WFS test bench for the Thirty-Meter- Telescope project and its AO system, NFIRAOS. The UVic AOLab has recently shown the ability to track Na profile induced aberrations while correcting for turbulence aberrations. The UVic AOLab has started the second phase of development of its LGS SH-WFS test bench. This next step consists of adding the Truth WFSs into the current bench design and of modeling and implementing the algorithms which blend the data coming from the variousWFSs. This paper shows the various components of the control architecture of NFIRAOS LGS wavefront sensing process. A first simulation shows the stability of the proposed control architecture and demonstrates that the DM is kept away from reproducing the LGS aberrations.

Paper Details

Date Published: 26 August 2008
PDF: 12 pages
Proc. SPIE 7093, Advanced Wavefront Control: Methods, Devices, and Applications VI, 709306 (26 August 2008); doi: 10.1117/12.795402
Show Author Affiliations
Rodolphe Conan, Univ. of Victoria (Canada)
Olivier Lardière, Univ. of Victoria (Canada)
Colin Bradley, Univ. of Victoria (Canada)
Glen Herriot, NRC-Herzberg Institute of Astrophysics (Canada)
Kate Jackson, Univ. of Victoria (Canada)

Published in SPIE Proceedings Vol. 7093:
Advanced Wavefront Control: Methods, Devices, and Applications VI
John D. Gonglewski; Richard A. Carreras; Troy A. Rhoadarmer, Editor(s)

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