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Proceedings Paper

An interferometric wavefront sensor for high-sensitivity low-amplitude measurements
Author(s): Nazim A. Bharmal; Richard M. Myers; Alastair G. Basden; Andrew P. Reeves
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Paper Abstract

We present a wavefront sensor design for the purpose of measuring post-AO corrected light, especially in the cases of high-Strehl and when using natural guide stars. It is inspired by holographic design principles and oers approximately two orders of magnitude increase in sensitivity over a conventional Shack-Hartmann design. The theoretical design and that of a laboratory prototype are presented, together with simulation results for a case-study of sinusoidal phase and the corresponding results from a laboratory experiment.

Paper Details

Date Published: 13 September 2012
PDF: 13 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 84472J (13 September 2012); doi: 10.1117/12.925988
Show Author Affiliations
Nazim A. Bharmal, Durham Univ. (United Kingdom)
Richard M. Myers, Durham Univ. (United Kingdom)
Alastair G. Basden, Durham Univ. (United Kingdom)
Andrew P. Reeves, 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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