由于LDA本身的结构特点使其出射光束存在着大发散角、大像散等缺陷,采用LDA与光纤耦合的方式不但可以整形光束,还可以扩大LDA的应用领域。设计了LDA与微球端面光纤列阵和单根微球端面光纤耦合两种光束整形方式,分别进行了实验测试并分析了它们的输出特性。实验表明:利用LDA与微球端面光纤列阵耦合,可以实现31W的高功率连续激光输出,LDA与单根微球端面光纤耦合后出射的激光功率能够达到25W,光纤数值孔径为0.22。 Due to the structural characteristics of the LDA itself, the emergence of the beam there is a large divergence angle, astigmatism and other defects, the use of LDA and fiber coupling method not only can shape the beam, but also can expand the application of LDA. Two kinds of beam shaping methods, LDA, micro-ball face fiber array and single-fiber micro-ball face fiber coupling, were designed and tested respectively and their output characteristics were analyzed. Experiments show that the LDW can achieve a high power continuous laser output of 31W by coupling the fiber array with the facet of the microsphere. The laser power emitted by coupling the LDA with a single microsphere facet fiber can reach 25W, and the optical fiber numerical aperture is 0.22.