报道了一种用共轴全对称光学系统补偿激光二极管本征像散的新方法，该方法结构简单，易制造，且费用低。文中还给出了几种准直和聚焦的光学系统。 A new method of compensating the intrinsic astigmatism of a laser diode with a coaxial and fully symmetric optical system is reported. The method has the advantages of simple structure, easy manufacture and low cost. The article also gives several kinds of collimation and focusing optical system.