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Proceedings Article

Preliminary results obtained with the ZEUS phasing sensor within the APE experiment

[+] Author Affiliations
I. Surdej, C. Araujo, R. Bourtembourg, R. Brast, P. Duhoux, C. Dupuy, C. Frank, F. Gonte, R. Karban, R. Mazzoleni, L. Noethe, N. Yaitskova

European Organisation for Astronomical Research in the Southern Hemisphere (Germany)

B. Luong

FOGALE nanotech (France)

A. Vigan, K. Dohlen

Lab. d'Astrophysique de Marseille (France)

Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 701218 (August 27, 2008); doi:10.1117/12.789689
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From Conference Volume 7012

  • Ground-based and Airborne Telescopes II
  • Larry M. Stepp; Roberto Gilmozzi
  • Marseille, France | June 23, 2008

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.

© (2008) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

I. Surdej ; B. Luong ; A. Vigan ; C. Araujo ; R. Bourtembourg, et al.
"Preliminary results obtained with the ZEUS phasing sensor within the APE experiment", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 701218 (August 27, 2008); doi:10.1117/12.789689; http://dx.doi.org/10.1117/12.789689


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