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Conference Papers Year : 2013

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

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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.
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cea-01823917 , version 1 (26-06-2018)

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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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