A fast interrogation system of FBG sensors based on low loss jammed-array wideband sawtooth filter

被引：11
|
作者：
Ding, Zhichao [1 ]
Tan, Zhongwei [1 ]
Su, Xiao-Xing [2 ]
Cao, Dandan [1 ]
机构：
[1] Beijing Jiaotong Univ, Inst Lightwave Technol, Key Lab All Opt Network & Adv Telecommun Network, Beijing, Peoples R China
[2] Beijing Jiaotong Univ, Inst Engn Mech, Beijing 100044, Peoples R China
来源：
OPTICAL FIBER TECHNOLOGY | 2019年 / 48卷
基金：
中国国家自然科学基金;
关键词：
Fiber Bragg grating (FBG) interrogator; JAWS filter; Finite reflection virtually imaged array; IMAGED PHASED-ARRAY;
D O I：
10.1016/j.yofte.2019.01.004
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：
In this paper, a low loss jammed-array wideband sawtooth (JAWS) filter is built based on a finite reflection virtually imaged array (FRVIA) which has a lower reflectivity of the exit surface compared to a virtually imaged phased array (VIPA). This filter can be used as an edge filter to interrogate the fiber Bragg grating (FBG) sensors. A fast FBG sensing system is set up to detect the strain wave of iron pipe to demonstrate the use of this interrogator. The result shows that the JAWS based interrogation system has advantages of high speed, low loss and high sensitivity.
引用
收藏
页码：128 / 133
页数：6
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