%0 Journal Article
%T Frequency modulation optical feedback characteristics of microchip Nd:YAG lasers with anisotropic external cavity<br>各向异性外腔微片Nd:YAG激光器调频回馈研究
%A Ren Cheng
%A Zhang Shu-Lian
%A <br>任成
%A 张书练
%J 物理学报
%D 2009
%I 
%X Optical feedback characteristics of frequency modulated microchip Nd:YAG lasers with anisotropic external cavity are investigated. With isotropic optical feedback, the modulation frequency of output intensity is proportional to the ratio of external cavity length to internal cavity length. With anisotropic optical feedback, the laser polarization periodically hops between two orthogonal directions with equal bandwidth. The times of polarization flipping in the longitudinal mode bandwidth is proportional to the ratio of external cavity length to internal cavity length, resulting in double frequency of original fringes. The theoretical analysis based on Fabry-Perot cavity equivalent model is in good agreement with the experimental results. The potential applications of this phenomenon in precision measurement are discussed.
%K optical feedback
%K frequency modulation optical feedback
%K anisotropic external cavity
%K fringe number within half wavelength<br>光回馈
%K 调频回馈
%K 各向异性外腔
%K 半波条纹数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=E247F1E092EB74E370DCEA29950446FC&yid=DE12191FBD62783C&vid=9FFCC7AF50CAEBF7&iid=B31275AF3241DB2D&sid=3D014C51CA4DA833&eid=3A3DD5EAD235385D&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0