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Proceedings Paper

Characterisation of optical pulses travelling through a photonic crystal fibre using Fourier-transform spectral interferometry
Author(s): T. Grósz; M. Kiss; A. P. Kovács
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Paper Abstract

Dispersion properties of a 37 cm long photonic crystal fibre were studied using spectral interferometry. The interferograms were evaluated by the conventional and the windowed Fourier-transform method, as well as other commonly used ones, such as the cosine function fit, the stationary phase point and the minima-maxima methods. It is shown that from the five techniques the conventional Fourier-transform method provided the dispersion coefficients with the highest accuracy, and both Fourier-transform techniques could detect phase jumps in the vicinity of the absorption valleys seen in the transmission spectrum of the fibre. We present a novel simple evaluation procedure based on Fouriertransform for a quick retrieval of the spatial and temporal pulse shape after the fibre. The time delay between the higher and the fundamental transversal modes was also measured by the Fourier-transform method.

Paper Details

Date Published: 3 May 2013
PDF: 9 pages
Proc. SPIE 8775, Micro-structured and Specialty Optical Fibres II, 87750E (3 May 2013); doi: 10.1117/12.2017260
Show Author Affiliations
T. Grósz, Univ. of Szeged (Hungary)
M. Kiss, Univ. of Szeged (Hungary)
A. P. Kovács, Univ. of Szeged (Hungary)

Published in SPIE Proceedings Vol. 8775:
Micro-structured and Specialty Optical Fibres II
Kyriacos Kalli; Jiri Kanka; Alexis Mendez, Editor(s)

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