Pump light high uniformity implementation method based on discrete circular symmetrical distributed LD arrays

The invention relates to a pump light high uniformity implementation method based on discrete circular symmetrical distributed LD arrays, in particular to a method for pump light to be uniformly distributed in a laser crystal through two times of homogenization. The first time of homogenization is implemented in the mode that a light cone carries out repeated diffuse reflection on LD pump light, and the second time of homogenization is implemented in the mode that the laser crystal carries out repeated total reflection on pump light irradiated into the laser crystal, so that the distribution uniformity of pump light in the crystal is improved. Compared with a traditional pumping method, the method has the advantages that the distribution uniformity of pump light formed in the laser crystal is higher and the pumping efficiency is higher.