Optical path correlator for low-coherence multiplexing fiber optic sensor

被引：0
|
作者：
Yuan, Yonggui [1 ]
Wu, Bing [1 ]
Yang, Jun [1 ]
Yuan, Libo [1 ]
机构：
[1] Harbin Engn Univ, Sch Sci, Photon Res Ctr, Harbin 150001, Peoples R China
来源：
21ST INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS | 2011年 / 7753卷
关键词：
Optical fiber sensor; white light interferometer; fiber loop resonator; optical path correlation; TEMPERATURE SENSOR; SYSTEM;
D O I：
10.1117/12.884727
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Based on a cavity length tunable fiber loop resonator, a multi-beam optical path difference is generated. It can be used to match and correlate the reflective signals from the partial reflective ends of each sensing fiber gauge. The correlation signals corresponding to the sensing gauge lengths. And the shift of the correlation peak related with the fiber sensing gauge elongation caused by strain or temperature. Therefore, it can be used to measure distributed strain or deformation for smart structural monitoring.
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页数：4
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