分布式布拉格反射光纤激光器自混合尾纤调制技术  

Pigtail modulation technology of distributed Bragg reflector fiber laser self-mixing interference system

作　　者：吴爽[1] 吕亮[1] 

机构地区：[1]安徽大学物理与材料科学学院,安徽合肥230601

出　　处：《安徽大学学报（自然科学版）》2016年第4期44-49,共6页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61307098;61275165);安徽大学本科教育质量提升计划项目(ZLTS2015033)

摘　　要：激光自混合干涉技术是一种新型测量技术,其具有结构简单、紧凑、易准直等优点,因而广泛应用于振动测量领域.采用压电陶瓷尾纤调制技术,对分布式布拉格反射光纤激光器自混合干涉系统进行调制,最终实现了对外界物体振动信号的重构.重构结果表明,当外界振动物体峰峰值在λ/4到2λ范围时,重构振动信号的峰峰值误差低于0.3%.The laser self-mixing interference technology is a novel measurement technology, which has been widely applied in vibration measurement on account of its distinct advantages of simplicity, compactness and self-collimating. In this paper, the piezoelectric pigtail fiber modulation technology was used to modulate the distributed Bragg reflector fiber laser self- mixing interference system. Finally, the reconstruction of external object vibration signal was achieved. The reconstruction results showed that the error of reconstructed vibration signal peak value was less than 0.3%, when the external target peak value was in the range of λ/4 to 2λ.

关 键 词：自混合 外腔 调制 

分 类 号：O436.1[机械工程—光学工程]