Journal
MEASUREMENT SCIENCE AND TECHNOLOGY
Volume 21, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/21/9/094005
Keywords
Bragg grating; polymer optical fibre; sensor; strain; bend; temperature
Funding
- EU
- UK Engineering and Physical Sciences Research Council
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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 mu epsilon(-1). The temperature response shows a negative sign with the thermal sensitivity of -50.1 pm degrees C-1. For bend sensing, this device exhibits a strong fibre orientational dependence, wide bend curvature range of +/- 22.7 m(-1) and a high bend sensitivity of 63.3 pm/m(-1).
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