An integration strain sensor based on symmetrical twin-core fiber

Guangping Li; Ai Zhou; Quan Xu; Tuo Zheng; Libo Yuan

doi:10.1117/12.975140

7 November 2012 An integration strain sensor based on symmetrical twin-core fiber

Guangping Li, Ai Zhou, Quan Xu, Tuo Zheng, Libo Yuan

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842190 (2012) https://doi.org/10.1117/12.975140
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

A novel integrated fiber-optic sensor based on a symmetrical twin-core fiber was proposed and demonstrated as a strain sensor. By heating and tapering the symmetrical twin-core fiber, the light from one core can be partly or completely coupled into the other core in the coupled zone as the twin-core fiber was pulling. By detecting the output power of any one core, the strain applied on the twin-core fiber can be detected. The output power of twin core fiber versus the applied strain was experimentally investigated, and the results showed that the twin-core fiber can be used as a strain sensor.

Citation Download Citation

Guangping Li, Ai Zhou, Quan Xu, Tuo Zheng, and Libo Yuan "An integration strain sensor based on symmetrical twin-core fiber", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842190 (7 November 2012); https://doi.org/10.1117/12.975140

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