Measuring FBG's Bragg wavelength using fiber Fabry-Perot tunable filter

被引：0
|
作者：
Li, Rizhong [1 ]
Huang, Junbin [1 ]
Tang, Bo [1 ]
Gu, Hongcan [1 ]
机构：
[1] Naval Univ Engn, Dept Weaponry Eng, Wuhan 430033, Peoples R China
来源：
2008 INTERNATIONAL CONFERENCE ON OPTICAL INSTRUMENTS AND TECHNOLOGY: ADVANCED SENSOR TECHNOLOGIES AND APPLICATIONS | 2009年 / 7157卷
关键词：
FBG sensor; fiber Fabry-Perot tunable filter; wavelength measurement; strain; hysteresis characteristic; fiber Fabry-Perot interferometer; PHASE-SENSITIVE DETECTION; GRATING SENSORS;
D O I：
10.1117/12.806764
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A method using fiber Fabry-Perot tunable filter to achieve FBG sensor's Bragg wavelength is described. The system has the capability to interrogate large number of DFB sensors, whilst obtaining absolute Bragg wavelength with pm resolution. A demonstration system with 4 strain sensors is presented, which obtains DFB sensor's absolute strain value and achieves sub-microstrain resolution at 300Hz interrogating rate.
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页数：4
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