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Proceedings Paper

Stress profiling of arc-induced long-period gratings written in pure-silica-core fibers
Author(s): Gaspar Rego; J. C. C. Carvalho; P. V. S. Marques; Alberto Fernandez Fernandez; F. Duerr; Hans G. Limberger
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Paper Abstract

Long-period gratings were written in a pure-silica-core fiber using the electric arc technique. To assess the influence of stress relaxation on grating formation, tomographic stress measurements were performed inside the grating. No stress annealing could be observed within the accuracy of the stress measurement, suggesting a negligible photo-elastic contribution to the arc-induced perturbation of the index profile. In contrast, stress relaxation was found inside a splice of pure-silica-core fiber where discharge conditions are different, indicating the general potential to alter the fibers stress and thus the index profile using an electric arc.

Paper Details

Date Published: 23 May 2005
PDF: 4 pages
Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); doi: 10.1117/12.624285
Show Author Affiliations
Gaspar Rego, Instituto Politecnico de Viana do Castelo (Portugal)
INESC Porto (Portugal)
J. C. C. Carvalho, INESC Porto (Portugal)
P. V. S. Marques, INESC Porto (Portugal)
Univ. do Porto (Portugal)
Alberto Fernandez Fernandez, SCK-CEN Belgian Nuclear Research Ctr. (Belgium)
Univ. Libre de Bruxelles (Belgium)
F. Duerr, Ecole Polytechnique Federale de Lausanne (Switzerland)
Hans G. Limberger, Ecole Polytechnique Federale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 5855:
17th International Conference on Optical Fibre Sensors
Marc Voet; Reinhardt Willsch; Wolfgang Ecke; Julian Jones; Brian Culshaw, Editor(s)

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