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对强激光光束控制和参数评价等强激光领域的一些理论作了介绍和分析,以平顶高斯光束(FGB)为例,推导出了它通过无光阑和有光阑的近轴ABCD光学系统传输的解析表达式。阐述了几种实用光束传输变换的方法,总结了影响强激光光束质量的主要因素。以高功率激光的应用需求为背景,研究高功率激光的光束传输变换、光束质量评价和光束控制问题,为相关领域应用提供理论基础和计算依据。
Some theories in the field of intense laser such as the control and parameter evaluation of intense laser beam are introduced and analyzed. Taking the flattened Gaussian beam (FGB) as an example, it is deduced that it passes through the non-iris diaphragm and the paraxial ABCD optical system with diaphragm Transmission of analytical expressions. Several practical methods of beam transmission transformation are described, and the main factors affecting the quality of the laser beam are summarized. With the application demand of high power laser as the background, the problems of beam transformation, beam quality evaluation and beam control of high power laser are studied, which provide theoretical basis and calculation basis for the application in related fields.