于清旭

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:光电工程与仪器科学学院

办公地点:大连理工大学物理学院231室

联系方式:13591806600

电子邮箱:yuqx@dlut.edu.cn

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基于扫描光纤激光器的光纤传感解调仪研究

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发表时间:2009-01-01

发表刊物:光子学报

所属单位:物理学院

期号:1

页面范围:82-86

ISSN号:1004-4213

摘要:A fiber optic sensing demodulation system based on a swept fiber laser was reported. A HCN gas cell was adopted as an embedded wavelength calibrator for the swept laser. The relation between the scanning voltage applied to the fiber Fabry-Perot tunable filter (FF-PTF) and the lasing wavelength was given out by a three order nonlinear fitting. The scanning voltage and multi-channel spectroscopy signal from sensors were sampled simultaneously and calibrated in real time. The interrogation wavelength resolution of 1.4 pm and the long term repeatability of 3.2 pm were achieved. Demodulation test results for FBG and F-P sensors show that the system is capable of measuring the reflected peak wavelength of FBG and cavity length of fiber EFPI sensor with high accuracy.

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