Update on the TMT adaptive optics real time controller

C. Boyer; L. Gilles; B. Ellerbroek; G. Herriot; J. P. Véran

doi:10.1117/12.787610

11 July 2008 Update on the TMT adaptive optics real time controller

C. Boyer, L. Gilles, B. Ellerbroek, G. Herriot, J. P. Véran

Proceedings Volume 7015, Adaptive Optics Systems; 701531 (2008) https://doi.org/10.1117/12.787610
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

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.

Citation Download Citation

C. Boyer, L. Gilles, B. Ellerbroek, G. Herriot, and J. P. Véran "Update on the TMT adaptive optics real time controller", Proc. SPIE 7015, Adaptive Optics Systems, 701531 (11 July 2008); https://doi.org/10.1117/12.787610

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available