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Proceedings Paper

Deep nulling in unpolarized light
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Paper Abstract

In the context of the ESA-Darwin mission, Thales Alenia Space has developed a nulling breadboard for ESA. The Multi Aperture Imaging Interferometer (MAII) first demonstrated deep nulling in both integrated optics and multi-axial combination schemes. More recently, Thales Alenia Space and Observatoire de la Côte d'Azur have been improving the nulling performance of MAII. The work was focused on polarization and the bench was upgraded consequently. Unpolarized and polarized nulling ratios are now quite similar at N ≈ 10-5 over a 5% relative bandwidth, stable over more than one hour. In this paper, we report on the improvements we have implemented in MAII and present our latest results.

Paper Details

Date Published: 19 September 2007
PDF: 9 pages
Proc. SPIE 6693, Techniques and Instrumentation for Detection of Exoplanets III, 669317 (19 September 2007); doi: 10.1117/12.732316
Show Author Affiliations
Christophe Buisset, Observatoire de la Côte d'Azur (France)
Alcatel Alenia Space (France)
Xavier Rejeaunier, Alcatel Alenia Space (France)
Yves Rabbia, Observatoire de la Côte d'Azur (France)
Marc Barillot, Alcatel Alenia Space (France)


Published in SPIE Proceedings Vol. 6693:
Techniques and Instrumentation for Detection of Exoplanets III
Daniel R. Coulter, Editor(s)

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