Time-domain intermodal interference including higher-order dispersion effects
Author: Hlubina P.1
Source: Journal of Modern Optics, Volume 50, Number 5, April 15, 2003 , pp. 791-799(9)
Publisher: Taylor and Francis Ltd
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Abstract:
The intermodal interference is analysed theoretically at the output of both a few-mode optical fibre alone and a tandem configuration of a Michelson interferometer with an optical fibre when higher-order intermodal dispersion effects are taken into account. It is revealed theoretically that in a special case of a two-mode optical fibre with a quadratic spectral dependence of the difference of propagation constants, which includes the equalization frequency with zero intermodal group delay, and fibre excitation by a broad-band light source, the time-domain visibility functions differ substantially from those corresponding to fibre excitation by a low-coherence light source. Moreover, measuring a two-mode optical fibre using time-domain and spectral-domain white-light interferometric techniques, some theoretical results are confirmed experimentally.Document Type: Research article
DOI: 10.1080/09500340210150424
Affiliations: 1: Institute of Physics, Silesian University at Opava, Bezrucõovo nám. 13, 746 01 Opava, Czech Republic; e-mail: petr.hlubina@fpf.slu.cz
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