摘要
在恶劣的环境下能准确地检测出光纤布喇格光栅(FBG)波长对工程监测非常重要。综述了在不同的解调系统中提高波长解调精度的方法和波长信号处理方法,主要介绍了基于可调谐激光器、可调谐滤波器和光谱仪的解调系统提高波长校准精确度的研究进展,分析了信号解调过程中的算法对FBG传感解调性能的影响。
It is very important to detect the fiber Bragg grating(FBG)wavelength accurately for engineering monitoring in bad environment.This paper reviews the methods of improving wavelength demodulation accuracy and wavelength signal processing in different demodulation systems.It mainly introduces the research progress of demodulation system based on tunable laser,tunable filter and spectrometer to improve wavelength calibration accuracy,analyzes the influence of the algorithm in the process of signal demodulation on the demodulation performance of FBG sensor.
作者
杨志
鞠婉秋
李永倩
YANG Zhi;JU Wanqiu;LI Yongqian(Department of Electronic and Communication Engineering,North China Electric Power University,Baoding Hebei 071003,China;Hebei Key Laboratory of Power Internet of Things Technology,North China Electric Power University,Baoding Hebei 071003,China;Baoding Key Laboratory of Optical fiber sensing and optical communication Technology,North China Electric Power University,Baoding Hebei 071003,China)
出处
《光通信技术》
2021年第3期4-9,共6页
Optical Communication Technology
基金
国家自然科学基金(批准号:61775057)资助。
关键词
光线布喇格光栅
解调系统
高精度
波长标定
峰值检测
fiber Bragg grating
demodulation system
high precision
wavelength calibration
peak detection
