9000 hours-long high temperature annealing of regenerated Fiber Bragg Gratings

G. Laffont 1 R. Cotillard 1 P. Ferdinand 1
1 LCFO - Laboratoire Capteurs Fibres Optiques
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
Abstract : Regenerated Fiber Bragg Gratings have been annealed at high temperatures up to 890°C during 9000 hours in continuous. This test has been conducted in order to experimentally assess the long-term stability of regenerated FBGs dedicated to measurements in high temperature environments. The evolution of both reflectivities and Bragg wavelengths of four wavelength-multiplexed regenerated FBGs simultaneously annealed at respectively 760°C, 810°C, 850°C and 890°C is reported.
Keywords : High temperature Bragg wavelength High-temperature annealing Optical fiber sensor Bragg gratings Fiber Bragg gratings Sensors Annealing Long term stability High-temperature environment
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Conference papers
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https://hal-cea.archives-ouvertes.fr/cea-01823917
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Submitted on : Tuesday, June 26, 2018 - 3:46:50 PM
Last modification on : Wednesday, September 4, 2019 - 1:40:14 PM

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G. Laffont, R. Cotillard, P. Ferdinand. 9000 hours-long high temperature annealing of regenerated Fiber Bragg Gratings. Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, May 2013, Krakow, Poland. pp.87941X, ⟨10.1117/12.2025838⟩. ⟨cea-01823917⟩

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