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Proceedings Paper

Dispersion effects on the phase closure term: tests on a fiber interferometer
Author(s): Guillaume Huss; Emmanuel Longueteau; Laurent Delage; Francois Reynaud
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Paper Abstract

The phase closure is well known to remove the phase biases in a three-arm interferometer. This property is very useful to avoid the phase effect of the atmosphere in stellar interferometry. In this paper we theoretically investigate the effect of differential dispersion in a three-arm interferometer. We demonstrate that phase closure is corrupted by this spectral behavior. This theoretical analysis is illustrated by experimental results on a fiber version of a stellar interferometer. The good accordance between the numerical simulations and the experimental results valid this model.

Paper Details

Date Published: 21 February 2003
PDF: 7 pages
Proc. SPIE 4838, Interferometry for Optical Astronomy II, (21 February 2003); doi: 10.1117/12.457129
Show Author Affiliations
Guillaume Huss, Institut de Recherche en Communications Optiques et Microondes (France)
Emmanuel Longueteau, Institut de recherche en Communications Optiques et Microondes (France)
Laurent Delage, Institut de Recherche en Communications Optiques et Microondes (France)
Francois Reynaud, Institut de Recherche en Communications Optiques et Microondes (France)

Published in SPIE Proceedings Vol. 4838:
Interferometry for Optical Astronomy II
Wesley A. Traub, Editor(s)

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