Paper
23 April 2017 Few mode fibers based quasi-single mode Raman distributed temperature sensor
Hao Wu, Meng Wang, Tongqing Liu, Chen Yang, Weijun Tong, Songnian Fu, Ming Tang
Author Affiliations +
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.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hao Wu, Meng Wang, Tongqing Liu, Chen Yang, Weijun Tong, Songnian Fu, and 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); https://doi.org/10.1117/12.2263426
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KEYWORDS
Optical fibers

Spatial resolution

Raman scattering

Signal to noise ratio

Temperature sensors

Temperature metrology

Electronic filtering

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