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Proceedings Paper

Preliminary results of an experimental verification of shear strain influence on fibre Bragg grating reflection spectra
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Paper Abstract

Fibre Bragg gratings are used as temperature or longitudinal strain sensors in a number of applications. Only a few studies are concerned with transversal stress applied to these sensors. We recently derived an analytical solution for the reflection spectra of shear strain loaded fibre Bragg gratings. The experimental verification of this theory is presented in this work. A fibre-coupled spectra analyzer based on a Fabry-Perot tuneable filter was set up in order to measure the predicted effect. The setup is able to split and measure simultaneously the spectra of the two polarisation main axes of birefringent fibres. The experimental observations are in agreement with predictions derived by mode coupling theory.

Paper Details

Date Published: 23 August 2011
PDF: 7 pages
Proc. SPIE 8173, Photonics 2010: Tenth International Conference on Fiber Optics and Photonics, 81731Y (23 August 2011); doi: 10.1117/12.897911
Show Author Affiliations
A. Heßke, Technische Univ. München (Germany)
M. S. Müller, Technische Univ. München (Germany)
T. C. Buck, Technische Univ. München (Germany)
A. W. Koch, Technische Univ. München (Germany)
F. Jülich, Munich Univ. of Applied Sciences (Germany)
J. Roths, Munich Univ. of Applied Sciences (Germany)

Published in SPIE Proceedings Vol. 8173:
Photonics 2010: Tenth International Conference on Fiber Optics and Photonics
Sunil K. Khijwania; Banshi D. Gupta; Bishnu P. Pal; Anurag Sharma, Editor(s)

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