Brillouin Optical Correlation Domain Analysis With Over 2.5 Million Resolution Points Based on Raman Amplification and Injection Locking

被引：6
|
作者：
Jeong, Wookjin [1 ,2 ]
Kim, Gyu-Tae [1 ]
Song, Kwang Yong [3 ]
Lee, Sang Bae [2 ]
Lee, Kwanil [2 ]
机构：
[1] Korea Univ, Sch Elect Engn, Seoul 02841, South Korea
[2] Korea Inst Sci & Technol, Nanophoton Res Ctr, Seoul 02792, South Korea
[3] Chung Ang Univ, Dept Phys, Seoul, South Korea
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2023年 / 41卷 / 01期
关键词：
Brillouin optical correlation domain analysis (BOCDA); Distributed fiber optic sensor; Raman amplification; Stimulated Brillouin scattering (SBS); DIFFERENTIAL MEASUREMENT SCHEME; MEASUREMENT RANGE ENLARGEMENT; STRAIN-MEASUREMENT; FREQUENCY; SCATTERING; TEMPERATURE; GENERATION; LEVEL; DELAY;
D O I：
10.1109/JLT.2022.3207756
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 propose and experimentally demonstrate a long-range Brillouin optical correlation domain analysis (BOCDA) system based on distributed Raman amplification and injection-locking to reach over 2.6 million resolving points. The optimization of key parameters in the Raman amplification, time domain data processing, differential measurement scheme, and injection-locking are applied to achieve a spatial resolution of 2 cm over a 50 km sensing fiber. Our result corresponds to at least twice improvement compared to former records, and the best one among distributed Brillouin sensors in terms of the number of resolving points.
引用
收藏
页码：341 / 346
页数：6
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