Optimization of Brillouin optical correlation domain analysis based on intensity modulation to enlarge the measurable strain limit

被引：0
|
作者：
Song, Kwang-Yong [1 ]
He, Zuyuan [1 ]
Hotate, Kazuo [1 ]
机构：
[1] Univ Tokyo, Dept Elect Engn, 7-3-1 Hongo, Tokyo 1138656, Japan
来源：
PHOTONIC SENSING TECHNOLOGIES | 2006年 / 6371卷
关键词：
Brillouin scattering; correlation; modulation; nonlinear optics; optical fiber measurements; strain measurement;
D O I：
10.1117/12.685793
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Effects of intensity modulation of light source on fiber distributed sensors based on Brillouin optical correlation domain analysis (BOCDA) are analyzed by numerical simulation, and the results are compared with reported experimental results. We show that the shape of the Brillouin gain spectrum in the BOCDA system has a particular dependence on the optical spectrum of the light source, and that it can be controlled and tailored by a proper modification of the optical spectrum using the intensity modulation.
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页数：10
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