AWG-based large dynamic range fiber Bragg grating interrogation system

被引：0
|
作者：
LI Shufeng [1 ,2 ]
YUAN Pei [1 ,2 ]
LI Ke [1 ,2 ]
LI Ting [1 ,2 ]
ZHU Lianqing [1 ,2 ]
机构：
[1] Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science & Technology University
[2] Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science & Technology University
来源：
Optoelectronics Letters | 2024年 / 20卷 / 03期
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TN253 [光纤元件];
学科分类号：
0702 ; 070207 ;
摘要：
Arrayed waveguide gratings(AWGs) are extensively employed in fiber Bragg grating(FBG) interrogation systems due to their compact size, lightweight nature, and excellent interrogation performance. The resolution and total measurement range of AWG-based FBG interrogation systems are constrained by the output properties of AWG. We proposed an AWG-based large dynamic range interrogation system. The temperature dependence of AWG is exploited to achieve continuous interrogation. The test results show that the interrogation system has a dynamic range of 28.67 nm, an interrogation accuracy better than 25 pm, and a wavelength resolution of 6 pm.
引用
收藏
页码：129 / 134
页数：6
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