In-Fiber Gratings for Simultaneous Monitoring Temperature and Strain in Ultrahigh Temperature
Document Type
Article
Publication Date
1-1-2015
Abstract
In this letter, a pair of regenerated gratings with Bragg wavelengths of 1547 and 1304 nm in a single piece of single-mode fiber has been fabricated for simultaneous monitoring of temperature and strain in ultrahigh temperature environment. A 3\times 3 matrix is used to characterize the cross sensitivity of the proposed sensor in which the strain sensitivity varies with temperature change. The proposed structure exhibits the deviation of 28.3 \mu \varepsilon and 4.1 °C at the ranges of 0-1000 \mu \varepsilon and 25 °C-900 °C, respectively.
Keywords
Regenerated grating, Fiber Bragg gratings, Ultra-high temperature, Temperature and strain sensing
Divisions
PHYSICS
Publication Title
IEEE Photonics Technology Letters
Volume
27
Issue
1
Publisher
Institute of Electrical and Electronics Engineers (IEEE)