In the closed microcavity of an ideal four-level laser system, when nonradiative depopulation is zero, the light output property of the microcavity laser is linearly.
在封闭腔，对理想的四能级激光系统，无辐射衰减速率为零时微腔激光器的光输出特性是线性的。
Solid laser is a four-level system.
固体激光器是一个四能级系统。
The time characteristics of a pulsed ti: sapphire laser have been studied theoretically based on the rate equation of four-level system.
本文从四能级结构激光速率方程出发，对脉冲掺钛蓝宝石激光器的时间特性进行了理论研究。
The rate equation of tunable pulse ti: sapphire laser is given using the theoretical model of four-level system.
以四能级系统为理论模型对脉冲可调谐掺钛蓝宝石激光系统建立了速率方程。
In this paper, we use the dressed-atom approach to derive the analytical expression of the gain of a FIR laser with a four-level system.
本文用缀饰原子方法解出四能级系统远红外激光增益系数的解析表达式。
In this paper, we use the dressed-atom approach to derive the analytical expression of the gain of a FIR laser with a four-level system.
本文用缀饰原子方法解出四能级系统远红外激光增益系数的解析表达式。
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