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Proceedings Paper

An AO real-time control solution for ELT scale instrumentation and application to EAGLE
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Paper Abstract

EAGLE is a proposed multi-IFU instrument for the E-ELT, with a full multi-object AO system. Current baseline designs for this MOAO system include up to six laser guide stars and five natural guide stars. Twenty science channels will be corrected using a corresponding number of independent 84x84 actuator deformable mirrors, though the applied corrections will not be observed by the wavefront sensors. In addition to this, the E-ELT M4 mirror is also part of the AO system, and will operate in closed loop. One possible design for a real-time control system for EAGLE is presented here, based on the Durham AO Real-time Control platform (DARC). Using hardware that we have available, we will present performance results based on the implementation of a sub-set of EAGLE, a single IFU channel. This can then be replicated twenty times to obtain a full EAGLE real-time control system, since each channel is independent. We also consider the implementation of real-time control systems for other ELT instruments, and how far our approach can take us.

Paper Details

Date Published: 13 September 2012
PDF: 7 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 84472S (13 September 2012); doi: 10.1117/12.925377
Show Author Affiliations
Alastair Basden, Durham Univ. (United Kingdom)
Nigel Dipper, Durham Univ. (United Kingdom)
Richard Myers, Durham Univ. (United Kingdom)
Eddy Younger, Durham Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 8447:
Adaptive Optics Systems III
Brent L. Ellerbroek; Enrico Marchetti; Jean-Pierre Véran, Editor(s)

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