21 February 2003 Dispersion effects on the phase closure term: tests on a fiber interferometer
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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.
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Guillaume Huss, Guillaume Huss, Emmanuel Longueteau, Emmanuel Longueteau, Laurent Delage, Laurent Delage, Francois Reynaud, Francois Reynaud, "Dispersion effects on the phase closure term: tests on a fiber interferometer", Proc. SPIE 4838, Interferometry for Optical Astronomy II, (21 February 2003); doi: 10.1117/12.457129; https://doi.org/10.1117/12.457129
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