光纤光栅静态和动态波长同时解调技术的研究  

Fiber Bragg Grating Interrogation Technique for Static and Dynamic Measurement Simultaneously

作　　者：王俊杰[1] 梁宇飞[1] 姜德生[1] 胡勇勤[1] 罗裴[1] 黄俊斌[2] 

机构地区：[1]武汉理工大学光纤中心,湖北武汉430070 [2]海军工程大学,湖北武汉430030

出　　处：《光电子．激光》2005年第6期698-701,共4页Journal of Optoelectronics·Laser

基　　金：国家"973"重大基础研究资助项目(513601ZT2)

摘　　要：阐述了基于可调谐滤波器(TOF)对光纤光栅(FBG)静态波长和动态波长同时解调技术的研究。将FBG粘贴于悬臂梁上,在其自由端通过砝码和激振器同时给FBG施加静应变和动应变,检测FBG静态波长和动态波长的变化。初步实验表明:准静态波长检测分辨率为1.6pm,动态波长检测分辨率为0.007pm/Hz。We report a fiber Bragg grating (FBG) interrogation technique for the measurement of static and dynamic wavelength shift simultaneously based a tunable optical filter (TOF). The sensing FBG was surface bonded to a cantilever, and static and dynamic strains were applied to the FBG at the same time by bring static and dynamic force to the free end by a weight and exciter. Initial experiments demonstrated detection resolution of 1.6 pm and ∼ 0.007 pm/√Hz for static and dynamic wavelength shift measurement respectively.

关 键 词：解调技术 光纤光栅 动态 可调谐滤波器 波长检测 FBG 分辨率 悬臂梁 动应变 静应变 激振器 自由端 准静态 

分 类 号：TN911.23[电子电信—通信与信息系统] TN253[电子电信—信息与通信工程]