Developed the flat top laser illumination system by using two axicon lens

在本研究中，我们使用两个轴锥透镜来开发平顶式激光照明系统。因此，存在一些问题，这是两个轴棱镜之间的几何问题。透镜的相对位置和角度对光强分布有影响。在目前光子学的精度部分，很难构造出稳定的系统。而激光器本身的光学面形又影响着平顶激光器的面形。这就需要设计更简单、更稳定的光学系统。

In this study, we developed the flat top laser illumination system by using two axicon lens. As a results, there are some problems that are the geometry between the two axicon lenses. The profile of optical intensity was influenced by the relative position and angle of the two lenses. In the accuracy of the current parts of photonics, it is hard to construct the stable system. And the optical profile of laser itself affected the profile of flat top laser. It is necessary to design more easy and stable the optical system.