Arrays of Regenerated Fiber Bragg Gratings in Non-Hydrogen-Loaded Photosensitive Fibers for High-Temperature Sensor NetworksReportar como inadecuado




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1

Institute of Photonic Technology IPHT, Albert-Einstein-Str. 9, 07745 Jena, Germany

2

Fibre Bragg Grating Sensors FBGS Technologies GmbH, Buchaer Str. 6, 07745 Jena, Germany

3

Fibre Optic Sensors and Sensing Systems FOS&S, Cipalstraat 14 - B-2440 Geel, Belgium





*

Author to whom correspondence should be addressed.



Abstract We report about the possibility of using regenerated fiber Bragg gratings generated in photosensitive fibers without applying hydrogen loading for high temperature sensor networks. We use a thermally induced regenerative process which leads to a secondary increase in grating reflectivity. This refractive index modification has shown to become more stable after the regeneration up to temperatures of 600 °C. With the use of an interferometric writing technique, it is possible also to generate arrays of regenerated fiber Bragg gratings for sensor networks. View Full-Text

Keywords: Bragg gratings; grating regeneration; temperature sensing Bragg gratings; grating regeneration; temperature sensing





Autor: Eric Lindner 1,* , Christoph Chojetztki 2, Sven Brueckner 1, Martin Becker 1, Manfred Rothhardt 1, Johan Vlekken 3 and Hartmut Bartelt 1

Fuente: http://mdpi.com/



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