High-temperature multiparameter sensor based on sapphire fiber Bragg gratings

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...

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Bibliographic Details
Published in:Optics letters 2010-08, Vol.35 (16), p.2810-2812
Main Authors: MIHAILOV, Stephen J, GROBNIC, Dan, SMELSER, Christopher W
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fiber optics
Fundamental areas of phenomenology (including applications)
Gratings
Optical elements, devices, and systems
Optics
Other fiber-optical devices
Physics
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Summary: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.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.35.002810