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Raman investigation of the drawing effects on Ge-doped fibers

A. Alessi 1, 2 Sébastien Girard 3 C. Marcandella 3 Marco Cannas 2 A. Boukenter 1 Y. Ouerdane 1
1 LHC - Laboratoire Hubert Curien [Saint Etienne]
2 DIPARTIMENTO DI SCIENZE FISICHE ED ASTRONOMICHE, UNIVERSITà DI PALERMO - Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo
3 DCRE CEA - Département de Conception et Réalisation des Experimentations, CEA-DIF
Abstract : We have investigated the Raman activity of various germanosilicate fibers and their associated preforms. Our data indicate an enhancement in small rings' (3-member rings) concentration in the silica-based matrix of the fibers during the drawing process. The generation of such rings appears compatible with an increase of the sample density and fictive temperature. The data regarding the drawing effects on the fiber stress appear less clear, and it is possible to suggest that in some cases the drawing could lower the tensile stress. Finally we have also provided evidence that changing the drawing conditions within the usual range of application leads to no significant changes of the matrix structure as can be observed using Raman spectroscopy.
Keywords : Optical fiber Raman spectroscopy Ge-doped silica
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https://hal-ujm.archives-ouvertes.fr/ujm-00549381
Contributor : Youcef Ouerdane <>
Submitted on : Tuesday, December 21, 2010 - 6:26:37 PM
Last modification on : Wednesday, June 3, 2020 - 12:30:03 AM

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A. Alessi, Sébastien Girard, C. Marcandella, Marco Cannas, A. Boukenter, et al.. Raman investigation of the drawing effects on Ge-doped fibers. Journal of Non-Crystalline Solids, Elsevier, 2011, 357, pp.24-27. ⟨10.1016/j.jnoncrysol.2010.09.080⟩. ⟨ujm-00549381⟩

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