Spatial-division multiplexed hybrid Raman and Brillouin distributed sensor employing multicore fiber

Zhiyong Zhao; Yunli Dang; Ming Tang; Li Duan; Meng Wang; Songnian Fu; Weijun Tong; Deming Liu

doi:10.1117/12.2267543

23 April 2017 Spatial-division multiplexed hybrid Raman and Brillouin distributed sensor employing multicore fiber

Zhiyong Zhao, Yunli Dang, Ming Tang, Li Duan, Meng Wang, Songnian Fu, Weijun Tong, Deming Liu

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103239C (2017) https://doi.org/10.1117/12.2267543
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

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.

Citation Download Citation

Zhiyong Zhao, Yunli Dang, Ming Tang, Li Duan, Meng Wang, Songnian Fu, Weijun Tong, and Deming Liu "Spatial-division multiplexed hybrid Raman and Brillouin distributed sensor employing multicore fiber", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103239C (23 April 2017); https://doi.org/10.1117/12.2267543

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