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Optical Engineering

Effect of thermal aging on Rayleigh backscattering in an optical fiber
Author(s): A. Ch'hayder; F. Tarrach; S. Guermazi; Guillaume Ducournau; Mohamed Kétata
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Paper Abstract

We investigate the effect of thermal aging on the optical properties of multimode silica fibers. Samples were submitted to several heating-cooling cycles of 8 h each. Analyses were performed using an optical spectrum analyzer and an optical time-domain reflectometer to determine the signal loss. We proved that the attenuation coefficient is closely related to Rayleigh backscattering. Results show an increase of the attenuation coefficient with aging time. The obtained results show a degradation of the optical properties of fibers from 1680 h on, due to local variation of the refractive index induced by fluctuation of the material density.

Paper Details

Date Published: 1 April 2009
PDF: 3 pages
Opt. Eng. 48(4) 045001 doi: 10.1117/1.3114604
Published in: Optical Engineering Volume 48, Issue 4
Show Author Affiliations
A. Ch'hayder, Institut Préparatoire aux Etudes d'Ingénieurs de Sfax (Tunisia)
F. Tarrach, Institut Préparatoire aux Etudes d'Ingénieurs de Sfax (Tunisia)
S. Guermazi, Institut Préparatoire aux Etudes d'Ingénieurs de Sfax (Tunisia)
Guillaume Ducournau, Univ. de Rouen (France)
Mohamed Kétata, Univ. de Rouen (France)

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