CaltechAUTHORS
Published July 11, 2008 | Version Published
Book Section - Chapter Open

Update on the TMT adaptive optics real time controller

Creators

  • 1. ROR icon TMT Observatory
  • 2. ROR icon Herzberg Institute of Astrophysics

Contributors

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.

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.

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Additional details

Identifiers

Eprint ID
88547
Resolver ID
CaltechAUTHORS:20180802-154731464

Funding

Association of Canadian Universities for Research in Astronomy (ACURA)
Caltech
University of California
Gordon and Betty Moore Foundation
Canada Foundation for Innovation
Ontario Ministry of Research and Innovation
National Research Council of Canada
Natural Sciences and Engineering Research Council of Canada (NSERC)
British Columbia Knowledge Development Fund
Association of Universities for Research in Astronomy (AURA)
NSF

Dates

Created
2018-08-02
Created from EPrint's datestamp field
Updated
2021-11-16
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Thirty Meter Telescope
Series Name
Proceedings of SPIE
Series Volume or Issue Number
7015