Few mode fibers based quasi-single mode Raman distributed temperature sensor

被引：0
|
作者：
Wu, Hao [1 ,2 ]
Wang, Meng [1 ,2 ]
Liu, Tongqing [3 ]
Yang, Chen [3 ]
Tong, Weijun [3 ]
Fu, Songnian [1 ,2 ]
Tang, Ming [1 ,2 ]
机构：
[1] Huazhong Univ Sci & Technol, WNLO, Wuhan 430074, Hubei, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Natl Engn Lab Next Generat Internet Access Syst, Wuhan 430074, Hubei, Peoples R China
[3] Yangtze Opt Fiber & Cable Joint Stock Ltd Co YOFC, State Key Lab Opt Fiber & Cable Mfg Technol, Wuhan 430073, Hubei, Peoples R China
来源：
2017 25TH INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS (OFS) | 2017年 / 10323卷
关键词：
Fiber optics sensors; Raman scattering; few mode fibers;
D O I：
10.1117/12.2263426
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 degrees C @ 10km and 6.7 degrees C @ 20km, respectively.
引用
收藏
页数：4
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