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Proceedings Paper

CHOUGH, the Canary Hosted-Upgrade for High-Order Adaptive Optics
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Paper Abstract

The Canary Hosted-Upgrade for High-Order Adaptive Optics, or CHOUGH, is an upgrade for the Canary Tomographic AO experiment. It aims to enable a high-order 30×30, single-conjugate AO capability on a 4m telescope. It utilizes a Shack-Hartmann WFS with a spatial filter for measurements together with a MEMS-DM and a magnetically actuated DM in tandem to provide the correction (dual-DM architecture). For analysis of the residuals from the correction, there are two separate instruments: a conventional imager operating in the visible part of the spectrum (V- to I-band), and an interferometer that directly measures the phase. At present the system is in the design stage and this paper reports progress towards developing a system that is capable of delivering the goals on-sky.

Paper Details

Date Published: 22 August 2014
PDF: 9 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 91485V (22 August 2014); doi: 10.1117/12.2055482
Show Author Affiliations
Nazim Ali Bharmal, Durham Univ. (United Kingdom)
Richard M. Myers, Durham Univ. (United Kingdom)
Alastair G. Basden, Durham Univ. (United Kingdom)
Daniel Hölck, Durham Univ. (United Kingdom)
Timothy J. Morris, Durham Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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