Minimizing fiber dispersion effects in double Fourier stellar interferometers

Vincent Coude du Foresto; Guy S. Perrin; Maxime Boccas

doi:10.1117/12.211842

14 June 1995 Minimizing fiber dispersion effects in double Fourier stellar interferometers

Vincent Coude du Foresto, Guy S. Perrin, Maxime Boccas

Proceedings Volume 2476, Fiber Optics in Astronomical Applications; (1995) https://doi.org/10.1117/12.211842
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

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.

Citation Download Citation

Vincent Coude du Foresto, Guy S. Perrin, and Maxime Boccas "Minimizing fiber dispersion effects in double Fourier stellar interferometers", Proc. SPIE 2476, Fiber Optics in Astronomical Applications, (14 June 1995); https://doi.org/10.1117/12.211842

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