Multiplexed regenerated fiber Bragg gratings for high-temperature measurement

G. Laffont 1, * R. Cotillard 1 P. Ferdinand 1
* Corresponding author
1 LCFO - Laboratoire Capteurs Fibres Optiques
DM2I - Département Métrologie Instrumentation & Information : DRT/LIST/DM2I
Abstract : A high-temperature gradient of a conventional tubular furnace is characterized using a single-fiber sensing line with wavelength-multiplexed short-length-regenerated fiber Bragg gratings. The multiplexed gratings are simultaneously regenerated using a high-temperature annealing process. Temperature calibration from ambient temperatures up to 900 ◦C is conducted leading to a standard deviation of 0.15 ◦C after the polynomial fitting of the wavelength shift with the temperature.
Keywords : optical fibers sensors regenerated fiber Bragg gratings high temperature multiplexing Bragg gratings
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Journal articles
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https://hal-cea.archives-ouvertes.fr/cea-01802609
Contributor : Bruno Savelli <>
Submitted on : Tuesday, May 29, 2018 - 2:57:30 PM
Last modification on : Wednesday, September 4, 2019 - 1:40:14 PM

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G. Laffont, R. Cotillard, P. Ferdinand. Multiplexed regenerated fiber Bragg gratings for high-temperature measurement. Measurement Science and Technology, IOP Publishing, 2013, 24, pp.094010. ⟨10.1088/0957-0233/24/9/094010⟩. ⟨cea-01802609⟩

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