Name
Abstract | ||
|---|---|---|
In the distributed optical fiber sensing (DOFS) domain, simultaneous measurement of vibration and temperature/strain based on Rayleigh scattering and Brillouin scattering in fiber could have wide applications. However, there are certain challenges for the case of ultra-long sensing range, including the interplay of different scattering mechanisms, the interaction of two types of sensing signals, and the competition of pump power. In this paper, a hybrid DOFS system, which can simultaneously measure temperature/strain and vibration over 150 km, is elaborately designed via integrating the Brillouin optical time-domain analyzer (BOTDA) and phase-sensitive optical time-domain reflectometry (phi-OTDR). Distributed Raman and Brillouin amplifications, frequency division multiplexing (FDM), wavelength division multiplexing (WDM), and time division multiplexing (TDM) are delicately fused to accommodate ultra-long-distance BOTDA and phi-OTDR. Consequently, the sensing range of the hybrid system is 150.62 km, and the spatial resolution of BOTDA and phi-OTDR are 9 m and 30 m, respectively. The measurement uncertainty of the BOTDA is +/- 0.82 MHz. To the best of our knowledge, this is the first time that such hybrid DOFS is realized with a hundred-kilometer length scale. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.3390/s18040976 | SENSORS |
Keywords | DocType | Volume |
fiber optics sensors,optical time domain reflectometry,Rayleigh scattering,stimulated Brillouin scattering,optical amplifiers | Journal | 18 |
Issue | ISSN | Citations |
4.0 | 1424-8220 | 0 |
PageRank | References | Authors |
0.34 | 0 | 10 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yun Fu | 1 | 14 | 1.15 |
| Zinan Wang | 2 | 2 | 1.84 |
| Richeng Zhu | 3 | 0 | 0.68 |
| Naitian Xue | 4 | 0 | 0.34 |
| Jialin Jiang | 5 | 1 | 1.83 |
| Chongyu Lu | 6 | 0 | 1.01 |
| Bin Zhang | 7 | 60 | 40.23 |
| Le Yang | 8 | 106 | 13.26 |
| David Atubga | 9 | 0 | 0.34 |
| Y. Rao | 10 | 4 | 6.49 |