Spectral-domain interferometric technique used to measure group index dispersion of holey fibers

Petr Hlubina; Dalibor Ciprian; Radek Chlebus

doi:10.1117/12.818009

18 November 2008 Spectral-domain interferometric technique used to measure group index dispersion of holey fibers

Petr Hlubina, Dalibor Ciprian, Radek Chlebus

Proceedings Volume 7138, Photonics, Devices, and Systems IV; 713815 (2008) https://doi.org/10.1117/12.818009
Event: Photonics, Devices, and Systems IV, 2008, Prague, Czech Republic

Abstract

A new spectral-domain interferometric technique used for measuring the group index of holey fibers over a wide wavelength range is presented. The technique utilizes an unbalanced Mach-Zehnder interferometer with a fiber under test of known length placed in one of the interferometer arms and the other arm with adjustable path length. First, the differential group index of the fiber is measured. Second, the fiber excitation is changed to guide light in the fiber cladding or the fiber is replaced by the reference sample of known thickness and known group dispersion to determine precisely the group index of the fiber at one specific wavelength. The group index as a function of wavelength is measured for two different holey fibers, one of them made of pure silica glass.

Citation Download Citation

Petr Hlubina, Dalibor Ciprian, and Radek Chlebus "Spectral-domain interferometric technique used to measure group index dispersion of holey fibers", Proc. SPIE 7138, Photonics, Devices, and Systems IV, 713815 (18 November 2008); https://doi.org/10.1117/12.818009

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