This paper mainly analyses two scheme designs of focusing system by using the conjugate relation between pupil plane and image plane in Gauss beam.
文章应用高斯光束的瞳平面和像平面的共扼关系，分析激光聚焦系统的两种总体方案的设计。
Recently, a lot of literatures have studied focusing properties of beams particularly. Further studies of beam focusing are of great significance for lasers application and design of optical system.
已有大量文献对光束的聚焦特性进行了详细的研究，光束聚焦特性的进一步研究对激光束的应用和光学系统的设计有着极大的实际意义。
The characteristic of beam focusing is a very important issue of the ICF laser system.
光束聚焦特性是ICF激光系统中备受关注的问题之一。
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