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Update on the TMT adaptive optics real time controller

Boyer, C. and Gilles, L. and Ellerbroek, B. and Herriot, G. and Véran, J. P. (2008) Update on the TMT adaptive optics real time controller. In: Adaptive Optics Systems. Proceedings of SPIE. No.7015. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 701531. ISBN 9780819472250. http://resolver.caltech.edu/CaltechAUTHORS:20180802-154731464

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Abstract

The Thirty Meter Telescope (TMT) will implement a first light facility Laser Guide Star Multi Conjugate Adaptive Optics System, NFIRAOS, which will feed three science instruments on the telescope Nasmyth platform. This system will include two deformable mirrors, six laser guide star wavefront sensors, and multiple tip/tilt/focus wavefront sensors located in the instruments. The Real Time Controller (RTC) is one of the most innovative and essential components of this first light AO system. In this paper, we provide an update on the NFIRAOS RTC overall requirements and challenges, and in particular, on the tomography and fitting wavefront reconstruction algorithms. Several implementations of a minimum variance reconstructor are presented together with their processing and memory requirements.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.787610DOIArticle
Additional Information:© 2008 Society of Photo-Optical Instrumentation Engineers (SPIE). The authors gratefully acknowledge the support of the TMT partner institutions. They are the Association of Canadian Universities for Research in Astronomy (ACURA), the California Institute of Technology and the University of California. This work was supported as well by the Gordon and Betty Moore Foundation, the Canada Foundation for Innovation, the Ontario Ministry of Research and Innovation, the National Research Council of Canada, the Natural Sciences and Engineering Research Council of Canada, the British Columbia Knowledge Development Fund, the Association of Universities for Research in Astronomy (AURA) and the U.S. National Science Foundation.
Group:Thirty Meter Telescope
Funders:
Funding AgencyGrant Number
Association of Canadian Universities for Research in Astronomy (ACURA)UNSPECIFIED
CaltechUNSPECIFIED
University of CaliforniaUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Canada Foundation for InnovationUNSPECIFIED
Ontario Ministry of Research and InnovationUNSPECIFIED
National Research Council of CanadaUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
British Columbia Knowledge Development FundUNSPECIFIED
Association of Universities for Research in Astronomy (AURA)UNSPECIFIED
NSFUNSPECIFIED
Subject Keywords:Thirty Meter Telescope, Adaptive Optics, NFIRAOS, Real Time Controller, wavefront reconstruction algorithms
Record Number:CaltechAUTHORS:20180802-154731464
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180802-154731464
Official Citation:C. Boyer, L. Gilles, B. Ellerbroek, G. Herriot, J. P. Véran, "Update on the TMT adaptive optics real time controller", Proc. SPIE 7015, Adaptive Optics Systems, 701531 (11 July 2008); doi: 10.1117/12.787610; https://doi.org/10.1117/12.787610
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88547
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:02 Aug 2018 23:31
Last Modified:02 Aug 2018 23:31

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