A variable-loop sagnac interferometer for distributed impact sensing

被引：56
|
作者：
Fang, XJ
机构：
[1] Telecommun. and Inf. Sci. Lab, Kansas Univ, Lawrence, KS
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 1996年 / 14卷 / 10期
关键词：
D O I：
10.1109/50.541215
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：
A variable-loop fiber optic Sagnae interferometer is designed to locate a time-varying disturbance. Phase perturbation on a Sagnac loop produces a nonreciprocal phase signal which contains information of the perturbation location, Both location and amplitude of the perturbation can be determined by combining two phase signals from the variable-loop Sagnac interferometer. Spatial resolution better than 1 m has been demonstrated in a 180 m prototype system.
引用
收藏
页码：2250 / 2254
页数：5
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