FBG Demodulation Method Based on DFB Laser

摘要：

A demodulation system for fiber Bragg grating (FBG) is designed based on distributed feedback (DFB) laser. By use of adjusting the internal temperature, wavelength tunable lasers is achieved, and utilizing the laser to realize the demodulation of FBG sensing signal. The system uses all-fiber structure, with fast response and high precision demodulation, experimental results show that the method is accurate and stable to realize the demodulation of FBG sensing signal, the system minimum resolution can achieve lpm, the dynamic range was up to 3nm.

关键词： fiber Bragg grating DFB laser Dynamic strain demodulation sensitivity

作者: Jie LIU Hong ZHAO Peng WANG Liang JIANG Chao HUANG

作者单位: College of Electrical & Electronic Engineer,Harbin University of Science and Technology,Harbin China College of Electrical & Electronic Engineer,Harbin University of Science and Technology,Harbin China

会议类型: 国际会议

会议名称: The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)

会议地点: 哈尔滨

会议语种:英文

页码: 1207-1210

在线出版日期: 2011-08-22（万方平台首次上网日期，不代表论文的发表时间）