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Proceedings Paper

Minimizing fiber dispersion effects in double Fourier stellar interferometers
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Paper Abstract

One of the problems encountered when using single-mode fibers in a wideband interferometer is the dispersion of the waveguide. By optimizing the waveguide structure for an actual fluoride glass, a fiber can be made whose dispersion between 2 micrometers and 2.7 micrometers is reduced by more than two orders of magnitude. Simulated interferograms show that an interferometer using such a fiber could withstand a fiber length difference of 10m without a substantial degradation of its performances. This raises the possibility to consider all-fiber delay lines with several meters of optical path delay variation.

Paper Details

Date Published: 14 June 1995
PDF: 10 pages
Proc. SPIE 2476, Fiber Optics in Astronomical Applications, (14 June 1995); doi: 10.1117/12.211842
Show Author Affiliations
Vincent Coude du Foresto, Max-Planck-Institut fuer Astronomie (Germany)
Guy S. Perrin, Observatoire de Paris-Meudon (France)
Maxime Boccas, Le Verre Fluore (France)

Published in SPIE Proceedings Vol. 2476:
Fiber Optics in Astronomical Applications
Samuel Charles Barden, Editor(s)

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