Flat-topped laser beam generation device and design method thereof

The invention discloses a flat-topped laser beam generating device, which belongs to the technical field of laser, and comprises a laser light source, a collimating and beam expanding lens group and an aspheric reflector group which are sequentially arranged along a light path, the collimating and beam expanding lens group is composed of a first collimating and beam expanding lens and a second collimating and beam expanding lens which are sequentially arranged, and the aspheric reflector group is composed of a second collimating and beam expanding lens and a third collimating and beam expanding lens which are sequentially arranged. The aspheric reflector group at least comprises two aspheric reflectors. The invention further discloses a design method of the flat-topped laser beam generating device. The flat-topped laser beam generating device has the advantages of high energy utilization rate, low photothermal effect, no color difference and the like. 本发明公开了一种平顶激光光束产生装置，属于激光技术领域，包括沿光路依次设置的激光光源、准直扩束镜组和非球面反射镜组，