一台染料激光器光束质量因子M^2的测量

Measurement of a dye laser beam quality factor M^2

本文从激光光束质量因子 M2的定义出发 ,分析了 M2的物理意义 ,介绍了 M2的测量方法——二阶矩法 ,并采用 CCD摄像机及光束截面分析仪实际测量了一台染料激光器 DPL - 30 0 0输出激光的光束质量因子 M2 。

The paper presented the definition and the meaning of laser beam quality factor M 2 . A dye laser beam was measured with our CCD camera system, and its beam quality factor M 2 was given.