论文部分内容阅读
利用数值计算结果研究了具有 2个非相干泵浦的开放的 V型无粒子数反转激光 (L WI)系统中原子响应的时间演化规律。发现 :驱动场耦合的 2个能级上的粒子数布居的时间演化具有相同的振荡频率但位相差为 π;粒子数布居初始值的大小主要影响增益、相干项和粒子数差的振荡幅度并不影响稳定状态时的取值 ;粒子注入速率比的增加将导致稳定状态的增益变大而粒子数差减小 ;粒子退出速率的增加将使稳定状态的增益和粒子数差减小
The time evolution of the atomic response in an open V-type particle-free inverted laser (L WI) system with two incoherent pumps is studied by numerical results. It is found that the evolution of population population at two levels of driving field evolution has the same oscillation frequency but the phase difference is π. The initial population of particles mainly affects the gain, coherence term and the difference of the number of particles The amplitude does not affect the steady-state value. The increase of the particle injection rate will lead to the increase of the steady state gain and the decrease of the particle number difference. The increase of the particle exit rate will decrease the steady-state gain and the difference of the number of particles