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Thermal annealing of tilted fiber Bragg gratings
Author(s): Á. González-Vila; L. Rodríguez-Cobo; P. Mégret; C. Caucheteur; J. M. López-Higuera
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Paper Abstract

We report a practical study of the thermal decay of cladding mode resonances in tilted fiber Bragg gratings, establishing an analogy with the “power law” evolution previously observed on uniform gratings. We examine how this process contributes to a great thermal stability, even improving it by means of a second cycle slightly increasing the annealing temperature. In addition, we show an improvement of the grating spectrum after annealing, with respect to the one just after inscription, which suggests the application of this method to be employed to improve saturation issues during the photo-inscription process.

Paper Details

Date Published: 30 May 2016
PDF: 4 pages
Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 991611 (30 May 2016); doi: 10.1117/12.2236928
Show Author Affiliations
Á. González-Vila, Univ. de Mons (Belgium)
L. Rodríguez-Cobo, Univ. de Cantabria (Spain)
P. Mégret, Univ. de Mons (Belgium)
C. Caucheteur, Univ. de Mons (Belgium)
J. M. López-Higuera, Univ. de Cantabria (Spain)

Published in SPIE Proceedings Vol. 9916:
Sixth European Workshop on Optical Fibre Sensors
Elfed Lewis, Editor(s)

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