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Proceedings Paper

Spatial-division multiplexed hybrid Raman and Brillouin distributed sensor employing multicore fiber
Author(s): Zhiyong Zhao; Yunli Dang; Ming Tang; Li Duan; Meng Wang; Songnian Fu; Weijun Tong; Deming Liu
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Paper Abstract

Employing the multiple spatially independent channels offered by multicore fiber (MCF), spatial-division multiplexed (SDM) hybrid Raman and Brillouin distributed sensor has been demonstrated. The interrogation of Raman and Brillouin scattering are performed in distinct cores of the MCF, allowing for flexible management of the input powers between each of them, which is actually incompatible in hybrid Raman/Brillouin distributed system using single mode fibers (SMFs) due to the limitation of nonlinear effects. The proposed SDM system employs shared devices to generate pump pulse, but separate interrogation fiber channels. The combination of Raman and Brillouin sensing provides the capability of discriminative measurement between temperature and strain.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239C (23 April 2017); doi: 10.1117/12.2267543
Show Author Affiliations
Zhiyong Zhao, Huazhong Univ. of Science and Technology (China)
Yunli Dang, Huazhong Univ. of Science and Technology (China)
Ming Tang, Huazhong Univ. of Science and Technology (China)
Li Duan, Huazhong Univ. of Science and Technology (China)
Meng Wang, Huazhong Univ. of Science and Technology (China)
Songnian Fu, Huazhong Univ. of Science and Technology (China)
Weijun Tong, Yangtze Optical Fibre and Cable Joint Stock Ltd. Co. (China)
Deming Liu, Huazhong Univ. of Science and Technology (China)


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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