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Proceedings Paper

Combined Sagnac and intermodal interferences for discrimination of strain and temperature variations
Author(s): Guoyong Sun; Yingxin Cen; Liyan Zhao; Chuliang Wei; Youngjoo Chung
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Paper Abstract

A fiber sensor capable of discriminating the strain and temperature variations is presented and fully investigated. Its simple configuration is a Sagnac interferometer containing only one piece of high birefringence few-mode fiber and a polarization controller in the loop arm. The Sagnac and intermodal interferences are generated simultaneously. Based on the combined interferences, it is possible to decouple the strain and temperature changes by monitoring the wavelength and power of one localized peak originating from the intermodal interference in the spectral response of the Sagnac interferometer.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236Z (23 April 2017); doi: 10.1117/12.2264594
Show Author Affiliations
Guoyong Sun, Shantou Univ. (China)
Yingxin Cen, Shantou Univ. (China)
Liyan Zhao, Shantou Univ. (China)
Chuliang Wei, Shantou Univ. (China)
Youngjoo Chung, Gwangju Institute of Science and Technology (Korea, Republic of)

Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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