随着半导体激光器应用的日益广泛，半导体激光的光束质量在二维方向极不均衡的特点限制了它的应用范围。采用一种等腰直角棱镜组的整形方法，可实现二维方向的光束质量均匀化。实验中整形后快慢轴的光束质量比较接近，整形效率达到90%。经过整形的半导体激光器可以作为高功率固体激光器和光纤激光器的抽运源使用。

With the ever-increasing needs of high power diode laser source,it is important to obtain symmetric diode laser beam with high power so that a kind of beam-shaping technique with isosceles right-angled prism group has been used to achieve this aim. The experiment presents that the beam-quality is nearly equal for both the fast and slow axes,and the reshaping efficiency is up to 90%. Diode lasers with improved beam-quality can be applied as the pumping source in many high-power solid lasers and fiber lasers.