开放的四能级无反转激光系统研究  

Study on an Open Four-level Inversionless Lasing System

作　　者：朱孟正[1] 徐慧[1] 李景娟[1] 樊锡君[1] 

机构地区：[1]山东师范大学物理系,山东济南250014

出　　处：《光电子．激光》2003年第9期986-991,共6页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(69978011);山东省自然科学基金资助项目(Y2001A07)

摘　　要：提出了开放的四能级无反转激光系统的理论模型。通过电偶极和旋转波近似下的密度矩阵运动方程组求出了定态非线性解析解,利用数值计算结果,分析了系统各参量变化对增益、色散及粒子数差的影响,从定性和定量两方面讨论了线性和非线性解的差别。Theoretical model of an open fourlevel system and its nonlinear analytical solution in the steady state were presented by the density matrix equations of motion under the electric dipole and the rotating wave approximations,the effects of system′s parameters varying on the gain,dispersion and population difference were analyzed by numerical results from the nonlinear solution,and the difference between the nonand linear solutions were discussed.

关 键 词：四能级无反转激光系统 无粒子数反转激光 非相干泵浦 增益 色散 粒子数差 

分 类 号：O431.2[机械工程—光学工程] TN241[理学—光学]