标定方法提高布拉格光栅解调系统测量精度研究  

Calibrating Method to Improve Fiber Bragg Grating Demodulation System Measurement Precision

作　　者：张翠[1] 

机构地区：[1]武汉理工大学光纤中心光纤传感技术与信息处理教育部重点实验室,湖北武汉430070

出　　处：《激光与红外》2006年第6期483-486,共4页Laser & Infrared

基　　金：国家高技术研究计划(863计划)资助项目(2002AA-31-31-40)

摘　　要：文章针对光栅解调系统的标定问题,介绍了布拉格光栅解调系统的工作原理,设计了系统标定结构,介绍了没有标准光栅、有单个标准光栅和用双标准光栅三种不同标定方法,引用实验数据具体说明,得到采用双标准光栅标定法可以使光栅解调系统测量精度达到±5pm,重复性最大误差为±8pm。According to the problem of demodulation system＇s calibration, the principle of fiber Bragg grating（FBG） demodulation system is introduced. At the same time, the structure of calibrating system is designed. Three different calibrating methods,no reference fiber Bragg grating, single reference fiber Bragg grating and double reference fiber Bragg grating, are presented. Through making a concrete analysis of experimental data, the result shows that the method adopting double reference fiber Bragg grating calibrating can improve precision of demodulation system to ± 5pro, maxmum error ± 8pro.

关 键 词：精度 标定 布拉格光栅 解调系统 

分 类 号：TN206[电子电信—物理电子学]