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Proceedings Paper

Preliminary results obtained with the ZEUS phasing sensor within the APE experiment
Author(s): I. Surdej; B. Luong; A. Vigan; C. Araujo; R. Bourtembourg; R. Brast; P. Duhoux; C. Dupuy; C. Frank; F. Gonte; R. Karban; R. Mazzoleni; L. Noethe; N. Yaitskova; K. Dohlen
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Paper Abstract

In the framework of the Active Phasing Experiment (APE), four different phasing techniques are tested. The ZErnike Unit for Segment phasing sensor (ZEUS) is integrated on the APE bench. APE has been tested in the laboratory before it will be installed on one of the Nasmyth platform of a Very Large Telescope (VLT) Unit Telescope to perform on sky tests. The ZEUS phasing sensor concept has its origins in the Mach-Zehnder interferometer equipped with a spatial filter in its focal plane. In this paper, the ZEUS phasing sensor is described together with its theoretical background and deployment within the APE experiment. The algorithms and its elements used to reconstruct the wavefront are described. Finally, the preliminary results obtained in the laboratory are presented.

Paper Details

Date Published: 17 July 2008
PDF: 11 pages
Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 701218 (17 July 2008); doi: 10.1117/12.789689
Show Author Affiliations
I. Surdej, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
B. Luong, FOGALE nanotech (France)
A. Vigan, Lab. d'Astrophysique de Marseille (France)
C. Araujo, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
R. Bourtembourg, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
R. Brast, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
P. Duhoux, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
C. Dupuy, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
C. Frank, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
F. Gonte, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
R. Karban, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
R. Mazzoleni, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
L. Noethe, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
N. Yaitskova, European Organisation for Astronomical Research in the Southern Hemisphere (Germany)
K. Dohlen, Lab. d'Astrophysique de Marseille (France)


Published in SPIE Proceedings Vol. 7012:
Ground-based and Airborne Telescopes II
Larry M. Stepp; Roberto Gilmozzi, Editor(s)

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