Output characteristics of amplified-stimulated-emission lasers
Output characteristics of amplified-stimulated-emission lasers
复制标题
放大受激发射激光器的输出特性
DOI：
10.1364/josab.11.001425
复制
发表时间：
1994
影响因子：
1.9
通讯作者：
G. Pert
中科院分区：
文献类型：
--
作者：
G. Pert
用激光材料棒的简单模型研究了放大受激发射激光器的输出特性，光束沿激光棒双向传播。推导出了增益饱和和自发辐射的详细表达式。在此基础上，建立了一系列计算输出光强和线宽的解析模型。对于直线具有矩形轮廓的情况，得到了精确解，并将该解作为非均匀加宽的完整解的基础，并验证了用于均匀情况的近似。给出了直线既有均匀分量又有非均匀分量的混合情况。讨论了碰撞弛豫在改变展宽性质中的作用。
The output characteristics of an amplified-stimulated-emission laser are developed with a simple model of a rod of lasing material along which the beam propagates in both directions. Detailed expressions are derived for the saturation of gain and spontaneous emission. From these a series of analytic models is developed for calculation of the output intensity and linewidth. The exact solution is obtained for the case in which the line has a rectangular profile, and this solution is used as the basis for a complete solution for inhomogeneous broadening and to validate an approximation used for the homogeneous case. The mixed case in which the line has both homogeneous and inhomogeneous components is developed. The role of collisional relaxation in changing the nature of broadening is discussed.