Cavity tuning characteristics of orthogonally polarized dual-frequency He-Ne laser at 1.15 μm

作     者：赵正启 张书练 谈宜东 李岩 

作者机构：State Key Laboratory of Precision Measurement Technology and InstrumentsDepartment of Precision Instruments and MechanologyTsinghua University 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2012年第10卷第2期

页      面：48-51页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the National Natural Science Foundation of China under Grant Nos.60827006 and 60723004 

主　　题：Cavity tuning characteristics of orthogonally polarized dual frequency He Ne laser at 1.15 

摘      要：The cavity tuning characteristics of orthogonally polarized dual-frequency HeiNe laser at 1.15 μm are presented. Vectorial-extension model based on semi-classical laser theory reveals that cavity tuning characteristics are related to beat frequency, relative excitation, and type of Ne isotope. Distortions of cavity tuning curves become moderate with the increase of beat frequency because of the weakening of the cross- saturation effect. Distortions are enhanced with the increase of relative excitation because of the combined action of the self-saturation and cross-saturation effects. By adopting dual-isotope Ne instead of monoisotoplie Ne, distortions are reduced because of the misalignment between peaks of the self-saturation and net gain coefficients. The theoretical calculations are in good agreement with the corresponding experimental results.