针对半导体激光器的发光特点，设计了半导体激光器的光束整形系统。首先采用柱透镜准直和偏转沿Y轴发散的光束；然后再采用望远系统对X轴发散的光束进行准直和扩束；最后采用弯月透镜对发射光束压缩，实现半导体激光器的光束整形，降低光束发散角，提高光束质量。利用ZEMAX软件模拟系统，结果表明，整形后输出光束沿X轴和Y轴的发散角变为4.922mrad，输出光斑直径为1.2707mm，整形系统总长度为65.6618mm，各元件的最大直径为20.52 mm，输出光束质量和系统结构都优于同类产品。

According to the characteristics of semiconductor laser, beam plastic system of semiconductor laser is designed. First, the cylindrical lens is used to align and deflect the beam spread along the Y axis. Then the laser spread along X axis is aligned and expanded by the telescope system. Finally, transmitting laser beam is compressed using meniscus lens to realize beam shaping, reduce the beam divergence angle, improve the quality of the beam. Using ZEMAX software simulation system, the results show that the divergence angle of output beam along the X axis and the Y axis is 4.922 mrad after plastic, spot diameter is 1.2707mm, total length of plastic system is 65.6618mm, the maximum diameter of all element is 20.52mm. Both the quality of output beam and structure of the system are better than the similar products.