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Bragg grating in polymer optical fibre for strain, bend and temperature sensing

Authors: X. Chen, C. Zhang, D.J Webb, G.-D. Peng , K. Kalli
Abstract: We report on a Bragg grating written in an eccentric-cored polymer optical fibre for measurement of strain, bend and temperature. The strain sensitivity achieves 1.13 pm/με. The temperature response shows a negative sign with the thermal sensitivity of −50.1 pm/◦C. For bend sensing, this device exhibits a strong fibre orientational dependence, wide bend curvature range of ±22.7/m and a high bend sensitivity of 63.3 pm/m.
Year: 2010
Start Page: 94005
End Page: 5
Journal title: Measurement Science and Technology
Volume: 21
Issue: 2010
DOI: 10.1088/0957-0233/21/9/094005
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