Thermal annealing of tilted fiber Bragg gratings

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URI: http://hdl.handle.net/10902/10805
ISSN: 0277-786X
ISSN: 1996-756X
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Autoría
González Vila, Álvaro; Rodríguez Cobo, LuisAutoridad Unican; Megret, Patrice; Caucheteur, Christophe; López Higuera, José MiguelAutoridad Unican
Fecha
2016
Derechos
Copyright 2016 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Publicado en
Proceedings of SPIE, 2016, 9916, 991611
Sixth European Workshop on Optical Fibre Sensors, Limerick, Ireland, 2016
Editorial
SPIE Society of Photo-Optical Instrumentation Engineers
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Palabras clave
Optical fiber sensors
Fiber Bragg Grating
Tilted fiber Bragg grating
Thermal annealing
Resumen/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.
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