23 April 2017 Few mode fibers based quasi-single mode Raman distributed temperature sensor
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103236D (2017) https://doi.org/10.1117/12.2263426
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
We demonstrate a distributed temperature sensor based on quasi-single mode (QSM) Raman scattering in few mode fibers (FMFs). The FMF allows much larger input pump power before the initiate of stimulated Raman scattering compared with the standard single mode fiber (SSMF) and mitigates the detrimental differential mode group delay (DMGD) existing in the conventional multimode fiber (MMF) based Raman distributed temperature sensor (RDTS). Distributed temperature sensing is realized using conventional RDTS hardware over 20km FMFs within 90s, with a spatial resolution of 3m. The temperature resolution is 2.3°C @10km and 6.7°C @20km, respectively.
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Hao Wu, Hao Wu, Meng Wang, Meng Wang, Tongqing Liu, Tongqing Liu, Chen Yang, Chen Yang, Weijun Tong, Weijun Tong, Songnian Fu, Songnian Fu, Ming Tang, Ming Tang, } "Few mode fibers based quasi-single mode Raman distributed temperature sensor", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236D (23 April 2017); doi: 10.1117/12.2263426; https://doi.org/10.1117/12.2263426
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