A Novel Distributed Brillouin Sensor Based on Optical Differential Parametric Amplification

被引：39
作者：
Li, Yun [1 ]
Bao, Xiaoyi [1 ]
Dong, Yongkang [1 ]
Chen, Liang [1 ]
机构：
[1] Univ Ottawa, Dept Phys, Ottawa, ON K1N 6N5, Canada
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2010年 / 28卷 / 18期
关键词：
Brillouin scattering; fiber sensor; parametric amplification; SINGLE-MODE FIBERS; SPATIAL-RESOLUTION; STRAIN-MEASUREMENT; SCATTERING; SPECTRUM; GAIN;
D O I：
10.1109/JLT.2010.2057409
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 demonstrate a novel distributed sensor based on coherent interaction of the Brillouin gain and loss via optical differential parametric amplification (ODPA), which provides narrowed parametric Brillouin gain spectrum, strong Brillouin signal via differential gain, and short measurement time simultaneously. In experiment, a 0.5 m spatial resolution with a strain accuracy of 6 mu epsilon is realized by using 20/15 ns Stokes and anti-Stokes pulse pair in a 15 m polarization-maintaining fiber. The spectrum narrowing phenomenon in ODPA Brillouin sensor is discussed.
引用
收藏
页码：2621 / 2626
页数：6
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