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Discrimination between strain and temperature with a single fiber Bragg grating

✍ Scribed by Bai-Ou Guan; Hwa-Yaw Tam; Helen L. W. Chan; Chung-Loong Choy; Muhtesem Süleyman Demokan

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
101 KB
Volume
33
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A new scheme is proposed for simultaneous strain and temperature measurement with a single‐fiber Bragg grating. The grating sensor was written on the splice joint between two fibers and has two resonance peaks because of the different refractive index between the two fibers. By bonding one section of the grating onto the substrate of large thermal expansion coefficient, the two resonance peaks exhibit different strain and temperature response and can thus be used for strain/temperature discrimination. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 200–202, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10275

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