CHARA array adaptive optics II: non-common-path correction and downstream optics

Theo ten Brummelaar; Xiao Che; Harold McAlister; Michael Ireland; John Monnier; Denis Mourard; Stephen Ridgway; Judit Sturmann; Laszlo Sturmann; Nils Turner; Peter Tuthill

doi:10.1117/12.2056662

7 August 2014 CHARA array adaptive optics II: non-common-path correction and downstream optics

Theo ten Brummelaar, Xiao Che, Harold McAlister, Michael Ireland, John Monnier, Denis Mourard, Stephen Ridgway, Judit Sturmann, Laszlo Sturmann, Nils Turner, Peter Tuthill

Author Affiliations +

Proceedings Volume 9148, Adaptive Optics Systems IV; 91484Q (2014) https://doi.org/10.1117/12.2056662
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

We describe a back-end Adaptive Optics system for the CHARA Array called Lab-AO intended to compensate for non-common path errors between the AO system at the telescopes and the final beam combining area some hundreds of meters away. The system is an on-axis, very small field of view, low order system that will work on star light if enough is present, or will make use of a blue light beacon sent from the telescope towards the laboratory if not enough star light is available. The first of six of these system has been installed and has recently been tested on the sky. Another five will be built for the remaining telescopes later this year.

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Theo ten Brummelaar, Xiao Che, Harold McAlister, Michael Ireland, John Monnier, Denis Mourard, Stephen Ridgway, Judit Sturmann, Laszlo Sturmann, Nils Turner, and Peter Tuthill "CHARA array adaptive optics II: non-common-path correction and downstream optics", Proc. SPIE 9148, Adaptive Optics Systems IV, 91484Q (7 August 2014); https://doi.org/10.1117/12.2056662

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