Title
Simultaneous Measurement for Strain and Temperature Using Fiber Bragg Gratings and Multimode Fibers
Document Type
Article
Publication Date
4-2008
Department
Physics and Computer Science
Abstract
An all-fiber sensor capable of simultaneous measurement of temperature and strain is newly presented. The sensing head is formed by a fiber Bragg grating combined with a section of multimode fiber that acts as a Mach-Zehnder interferometer for temperature and strain discrimination. The strain and temperature coefficients of multimode fibers vary with the core sizes and materials. This feature can be used to improve the strain and temperature resolution by suitably choosing the multimode fiber. For a 10 pm wavelength resolution, a resolution of 9.21 μ∈ in strain and 0.26°C in temperature can be achieved.
Recommended Citation
Zhou, Da-Peng; Wei, Li; Liu, Wing-Ki; and Lit, John W.Y., "Simultaneous Measurement for Strain and Temperature Using Fiber Bragg Gratings and Multimode Fibers" (2008). Physics and Computer Science Faculty Publications. 17.
https://scholars.wlu.ca/phys_faculty/17
Comments
This paper was published in Applied Optics and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-10-1668. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.