作　　者： ; ; ;

机构地区： 清华大学机械工程学院精密测试技术及仪器国家重点实验室

出　　处： 《计测技术》 2012年第3期12-16,共5页

摘　　要： 多普勒测速是激光回馈研究领域中最主要和最活跃的分支之一。本文介绍了激光回馈多普勒测速的基本原理,回顾了该领域的研究进展。重点介绍了基于正交偏振双频激光器回馈效应的多普勒测速方法,并在此基础上设计了一种基于双频Nd:YAG微片激光器的回馈多普勒测速方案,分析了其装置原理和影响因素,讨论了其可行性。 Doppler velocimetry is one of the most important and active branches of laser-feedbacFk research fields.The basic principle of the laser-feedback Doppler velocimetry（LFDV） is introduced and the research progress in this domain is reviewed.The LFDV based on the feedback effect of an orthogonally polarized dual-frequency laser is specially presented and analyzed in detail.A Doppler velocity measurement method based on the laser feedback of a dual-frequency Nd：YAG microchip laser is designed and an experimental configuration is given.The principle and influence factors of this method are discussed,and the feasibility is demonstrated as well.

关 键 词： 多普勒测速 激光回馈 双频激光器 频率分裂 自混合干涉

领　　域： [机械工程] [理学] [理学] [电子电信]