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

Alastair Basden; Nigel Dipper; Richard Myers; Eddy Younger

doi:10.1117/12.925377

13 September 2012 An AO real-time control solution for ELT scale instrumentation and application to EAGLE

Alastair Basden, Nigel Dipper, Richard Myers, Eddy Younger

Proceedings Volume 8447, Adaptive Optics Systems III; 84472S (2012) https://doi.org/10.1117/12.925377
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

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.

Citation Download Citation

Alastair Basden, Nigel Dipper, Richard Myers, and Eddy Younger "An AO real-time control solution for ELT scale instrumentation and application to EAGLE", Proc. SPIE 8447, Adaptive Optics Systems III, 84472S (13 September 2012); https://doi.org/10.1117/12.925377

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