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Opt Lett. 2010 Aug 15;35(16):2810-2. doi: 10.1364/OL.35.002810.

High-temperature multiparameter sensor based on sapphire fiber Bragg gratings.

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1
Communications Research Centre Canada, 3701 Carling Avenue, P.O. Box 11490, Station H, Ottawa, Ontario K2H 8S2, Canada. stephen.mihailov@crc.gc.ca

Abstract

We present, for the first time to our knowledge, a dual strain/temperature sapphire fiber Bragg grating sensor. Temperature and strain coefficients of the grating are evaluated. By recording the blackbody radiation level above 650 degrees C, wavelength shifts due to temperature can be decoupled from those due to strain.

PMID:
20717465
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