Demodulation of the multi-peak fiber Bragg grating sensor based on partial wavelength scan

作     者：Pan Dai Yu Zhou Leilei Wang Shangjing Liu Xuping Zhang Xiangfei Chen 戴攀;周昱;王磊磊;刘尚靖;张旭苹;陈向飞

作者机构：Key Laboratory of Intelligent Optical Sensing and Manipulation of the Ministry of EducationInstitute of Optical Communication EngineeringNanjing UniversityNanjing 210093China National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2020年第18卷第7期

页      面：45-51页

核心收录：

学科分类：070207[理学-光学] 07[理学] 080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程] 0702[理学-物理学] 

基　　金：supported by the National Key R&D Program of China(Nos.2017YFA0206401 and 2018YFB2201801) the National Natural Science Foundation of China(No.61435014) the Key R&D Program of Jiangsu Province(No.BE2017003) the Natural Science Foundation of Jiangsu Province(No.BK20160907) 

主　　题：fiber Bragg grating fiber sensor multi-peak fiber Bragg grating 

摘      要：Until now, a high-efficiency demodulation method for fiber Bragg grating(FBG) sensors has been a *** this Letter, by employing multi-peak FBGs, an FBG sensor with a partial wavelength scan is proposed and initially demonstrated. By demodulating a near-symmetrical multi-peak FBG and an asymmetrical multi-peak FBG in the strain experiment, sensor sensitivities of 1.02 pm/με and 1.01 pm/με are measured for the interrogation system, respectively. The average demodulation deviations for the two sensors are 1.81% and 0.4%,respectively. The proposed method is expected to realize high-efficiency and low-cost FBG interrogators.