开放的梯型系统中相位涨落的影响(英文)  

The Effects of Phase Fluctuation in an Open Ladder System

作　　者：田淑芬[1] 张郡亮[2] 张恩宜[1] 樊锡君[3] 

机构地区：[1]山东师范大学现代教育技术研究所,山东济南250014 [2]衡水师专物理系,河北衡水053000 [3]山东师范大学物理系,山东济南250014

出　　处：《光电子．激光》2002年第7期744-748,共5页Journal of Optoelectronics·Laser

基　　金：Work Supported by National Natural Science Foundation of China( 6 99780 11) ;Natural Science Foundation of ShandongProvince ( Y2 0 0 1A0 7)

摘　　要：给出了有驱动场位相涨落的开放的梯型无粒子数反转激光 (L WI)系统增益、色散和布居数差的定态解析解 ,进而用得到的数值计算结果分析了驱动场位相涨落对增益、色散和布居数差的影响。研究结果表明 ,驱动场位相涨落将导致有限线宽 ;随着线宽的增加 ,系统增益单调地减小 ,但系统色散的变化并不是单调的 ,当线宽取某个值时 ,色散有极大值 ;线宽的变化不能导致无反转激光向反转激光的转变。The analytical solutions of the gain,dispersion and population difference in the steady state of an open ladder lasing without inversion(LWI) system are at first given when the phase fluctuation of the driving field is considered.Then the effects of the driving field phase fluctuation on the gain,dispersion and population difference are analyzed by the numerical results from the analytical solutions.Our research shows that the phase fluctuation of the driving field will results in a finite line width;with the line width increasing,the gain decreases monotonously,however,variation of the dispersion isnt monotonous,it has a maximum value when the line width takes some value;the line width varying cant lead to change lasing from without to with population inversion.

关 键 词：无粒子数反转激光 LWI 位相涨落 线宽 增益 色散 布居数差 

分 类 号：TN241[电子电信—物理电子学]