Abstract A method for judging the locations of dynamic stable zones boundaries and mode separations is presented by spherical aberration “transient variation” Experiments on spherical aberration in dynamic stable zones of an end-pumped laser are carried out. Based on the inversion of the wavefront information, the “beam quality deterioration zone” is investigated. The multiple relationships among the thermal focal length of the low-order modes are calculated. Based on the discussion of experimental results, the changing law of the sign of spherical aberration is studied. A theoretical model of the relation among the cavity configuration, spherical aberration and beam quality can be established in addition. The experimental results agree well with the theory.

中文翻译：

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LD端面泵浦激光器球差及光束质量因子的实验研究

摘要 提出了一种利用球差“瞬态变化”来判断动态稳定区边界和模式分离位置的方法。对端泵浦激光器动态稳定区的球差进行了实验。基于波前信息的反演，研究“光束质量劣化区”。计算了低阶模式的热焦距之间的多重关系。在讨论实验结果的基础上，研究了球面像差符号的变化规律。此外，还可以建立腔体配置、球面像差和光束质量之间关系的理论模型。实验结果与理论吻合较好。