首页 | 本学科首页   官方微博 | 高级检索  
     检索      

基于扫描光纤激光器的光纤传感解调仪研究
引用本文:王晓娜,王琦,陈乐华,于清旭.基于扫描光纤激光器的光纤传感解调仪研究[J].光子学报,2009,38(1):82-86.
作者姓名:王晓娜  王琦  陈乐华  于清旭
作者单位:大连理工大学,物理与光电工程学院,辽宁,大连,116023
基金项目:辽宁省自然科学基金,大连市科技计划 
摘    要:介绍了一种基于扫描光纤激光器的光纤传感解调系统.采用氰化氢(HCN)气体吸收池作为波长参考基准,采用三次多项式拟合的方法来确定光纤F- P可调谐滤波器的波长与驱动电压的对应关系,可调谐滤波器扫描过程中对扫描电压、多路光谱信号进行同步采样,实时标定.实验结果表明,该解调系统在1 510 nm到1 590 nm波长范围内对FBG反射峰值波长的分辨率为1.4 pm,长期波长重复性达到3.2 pm.利用该系统实现了对FBG反射峰值波长和光纤EFPI传感器腔长的高准确度解调.

关 键 词:扫描光纤激光器  HCN气体吸收池  光纤F-P可调谐滤波器  高准确度波长测量
收稿时间:2007-07-27
修稿时间:2007-10-25

Swept Fiber Laser Based Fiber Optic Sensor Demodulator
WANG Xiao-na,WANG Qi,CHEN Le-hua,YU Qing-xu.Swept Fiber Laser Based Fiber Optic Sensor Demodulator[J].Acta Photonica Sinica,2009,38(1):82-86.
Authors:WANG Xiao-na  WANG Qi  CHEN Le-hua  YU Qing-xu
Institution:School of Physics and Optoelectronic Technology;Dalian University of Technology;Dalian;Liaoning 116023;China
Abstract: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 1.4pm 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.
Keywords:Swept fiber laser  HCN gas cell  Fiber Fabry-Perot tunable filter  High accuracy wavelength measurement
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《光子学报》浏览原始摘要信息
点击此处可从《光子学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号