Intensity modulation characters of orthogonally polarized HeNe lasers with different optical feedback level  

作　　者：崔柳 张书练 万新军 

机构地区：[1]The State Key Laboratory of Precision Measurement Technology and Instruments,Department of Precision Instruments,Tsinghua University

出　　处：《Chinese Physics B》2008年第2期644-648,共5页中国物理B（英文版）

基　　金：Project supported by the State Key Program of National Natural Science of China (Grant No 60438010)

摘　　要：This paper demonstrates the intensity modulation characters of orthogonally polarized HeNe lasers with different optical feedback level generated by the variable reflectivity of external reflector. The modulation depths of the orthogonally polarized frequencies are increased when the optical feedback level becomes strong. It also observes that the modulation amplitudes are different for different external cavity length. Based on the vectorial extension of Lamb＇s semi-classical theory, it finds that the calculations are consistent with the experimental results.This paper demonstrates the intensity modulation characters of orthogonally polarized HeNe lasers with different optical feedback level generated by the variable reflectivity of external reflector. The modulation depths of the orthogonally polarized frequencies are increased when the optical feedback level becomes strong. It also observes that the modulation amplitudes are different for different external cavity length. Based on the vectorial extension of Lamb＇s semi-classical theory, it finds that the calculations are consistent with the experimental results.

关 键 词：intensity modulation optical feedback frequency split 

分 类 号：TN248[电子电信—物理电子学]