论文也分析了影响最佳光束发散角的因素，提出改善发散角的技术。
The paper analyses some factors which influence optimized optical beam disperse Angle and put forward technology to improve the optical beam disperses Angle.
给出了激光模式之间的耦合以及等效光束发散角与镜面变形量之间的关系。
The coupling among laser modes and the relations between equivalent beam spread Angle and the surface deformation of the mirrors are obtained.
本文对高阶横模光束发散角进行了讨论，并提出发散角的一种新的定义方法。
In this paper, divergence of higher-order laser beams is discussed and a new definition of divergence is suggested.
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