基于光纤光栅级联调谐技术的波长检测系统

基金项目:

国家八六三计划资助项目(2002AA313150);国家自然科学基金资助项目 ( 69877025 );国家教育部科学技术重点资助项目(02190)

详细信息

Study on wavelength detection system based on tunable filters with a novel multiplexing structure

Optical Fiber Sensing Laboratory, Xi'an Petroleum University, Xi'an 710065, China

摘要: 报道了一种检测光纤光栅传感器波长的新方案。实验系统采用新型的级联结构对电热调谐的光纤光栅滤波器进行复用,扫描分析传感信号光的峰值波长,同时用参考波长校准方法消除了电热调谐中的蠕动误差。结果表明,系统的检测范围可达23nm,波长分辨率为3.1pm,应变测量分辨率为2.56με。
- 光纤光栅 /
- 传感器 /
- 波分复用 /
- 波长检测
Abstract: A novel wavelength detection scheme is demonstrated for measuring the wavelength of fiber grating sensors.A new cascaded structure is used in the experimental system mu ltiplex fiber grating tunable filters.The peak wavelength of sensing signal in scanning mode is analyzed.The calibration technique is adopted by the reference wavelength,which eliminates the error induced by wavelength creepage when the filters are tuned.The results show that the detection range reaches 23nm,the wave length resolution is 3.1pm,and the strain resolution is 2.56με.
- fiber Bragg grating (FBG) /
- sensor /
- wavelength division multiplexing /
- wavelength detection

[1]	KERSEY A D,DAVIS M A,PATRICK H J et al.Fiber grating sensors[J].J Lightwave Technol,1997,15(8):1442～1463.
[2]	鲍吉龙,章献民,陈抗生 et al.光纤光栅传感器及其应用[J].激光技术,2000,24(3):174～179.
[3]	KERSEY A D,BERKOFF T A,MORIE W W.Multiplexed Bragg grating fiber-laser strain-sensor system with with a fiber Fabry-Parot wavelength filter[J].Opt Lett,1993,18(16):1370～1372.
[4]	LISSAK B,ARIE A.Highly sensitive strain measurements by locking lasers to fiber Bragg gratings[J].Opt Lett,1998,23(24):1930～1932.
[5]	HU Y,CHEN S,ZHANG L et al.Multiplexing Bragg grating using combined wavelength and spatial division technique with digital resolution enhancement[J]. Electron Lett,1997,33(23):1973～1975.
[6]	KERSEY A D,BERKOFF T A,MORIE W W.High-resolution fiber-grating based strain sensor with interferometric wavelength-shift detection[J].Electron Lett,1992,28(3):236～238.
[7]	谢芳,张书练,李岩 et al.光纤光栅反射波长移动研究[J]. 激光技术,2002,26(2):84～85.

1.	王玉. 交互式光感电子古筝设计模式的探索与比较. 复旦学报(自然科学版). 2021(03): 271-278 . 百度学术
2.	白刚，菅傲群，邹璐. 基于共振光隧穿效应的加速度传感器. 激光技术. 2019(01): 43-47 . 本站查看