Operation of Brillouin Optical Correlation-Domain Reflectometry: Theoretical Analysis and Experimental Validation

被引：92

作者：

Mizuno, Yosuke ^{[1
]}

Zou, Weiwen ^{[1
,2
]}

He, Zuyuan ^{[1
]}

Hotate, Kazuo ^{[1
]}

机构：

[1] Univ Tokyo, Dept Elect Engn & Informat Syst, Tokyo 1138656, Japan

[2] Shanghai Jiao Tong Univ, Dept Electron Engn, State Key Lab of Adv Opt Commun Syst & Networks, Shanghai, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2010年 / 28卷 / 22期

基金：

日本学术振兴会;

关键词：

Brillouin scattering; correlation; distributed measurement; modulation; nonlinear optics; reflectometry; DISTRIBUTED STRAIN-MEASUREMENT; MEASUREMENT RANGE ENLARGEMENT; SPATIAL-RESOLUTION; FIBER; SPECTRUM; PROPOSAL; SCHEME; SENSOR; BOTDA;

D O I：

10.1109/JLT.2010.2081348

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 theoretically and experimentally analyze the operation of Brillouin optical correlation-domain reflectometry (BOCDR). First, we experimentally confirm that BOCDR is not based on stimulated Brillouin scattering but on spontaneous Brillouin scattering. Then, we theoretically prove that the spatial resolution of BOCDR is given well by the same expression as that of Brillouin optical correlation-domain analysis (BOCDA). Finally, we demonstrate that the modulation amplitude of the laser frequency, which has been conventionally limited to a half of the Brillouin frequency shift, can be enhanced further by employing a sensing fiber shorter than a half of the measurement range.

引用

页码：3300 / 3306

页数：7

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