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

Rodolphe Conan; Olivier Lardière; Colin Bradley; Glen Herriot; Kate Jackson

doi:10.1117/12.787469

16 July 2008 Modeling of the Thirty-Meter-Telescope matched-filter-based LGS wavefront sensing

Rodolphe Conan, Olivier Lardière, Colin Bradley, Glen Herriot, Kate Jackson

Proceedings Volume 7015, Adaptive Optics Systems; 70154S (2008) https://doi.org/10.1117/12.787469
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

The Adaptive Optics Laboratory of the University of Victoria has build 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 in adding the Truth WFSs into the current bench design and in modeling and implementing the algorithms which blends 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.

Citation Download Citation

Rodolphe Conan, Olivier Lardière, Colin Bradley, Glen Herriot, and Kate Jackson "Modeling of the Thirty-Meter-Telescope matched-filter-based LGS wavefront sensing", Proc. SPIE 7015, Adaptive Optics Systems, 70154S (16 July 2008); https://doi.org/10.1117/12.787469

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