Novel distributed fiber Raman sensor and its application

Mingjiang Zhang; Jian Li; Jianzhong Zhang; Lijun Qiao; Tao Wang

doi:10.1117/12.2549536

12 March 2020 Novel distributed fiber Raman sensor and its application

Mingjiang Zhang, Jian Li, Jianzhong Zhang, Lijun Qiao, Tao Wang

Proceedings Volume 11436, 2019 International Conference on Optical Instruments and Technology: Optical Sensors and Applications; 114360N (2020) https://doi.org/10.1117/12.2549536
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

Abstract

We proposed and experimentally demonstrated a distributed optic-fiber sensor based on the Raman loop configuration and fiber loss characteristic for detecting the temperature and structure's crack. Among them, the Raman loop configuration with reference fiber is proposed to detect the temperature profile along the sensing fiber. It can eliminate the influence of external physical perturbation on the temperature measurement results, and don't require pre-calibration process before measurement. This proposed method improves the engineering applicability of optic-fiber sensors. In addition, the information of crack is detected by using the fiber loss characteristics based on OTDR technology.

Citation Download Citation

Mingjiang Zhang, Jian Li, Jianzhong Zhang, Lijun Qiao, and Tao Wang "Novel distributed fiber Raman sensor and its application", Proc. SPIE 11436, 2019 International Conference on Optical Instruments and Technology: Optical Sensors and Applications, 114360N (12 March 2020); https://doi.org/10.1117/12.2549536

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