根据ABCD传输矩阵理论,对激光二极管侧泵的Nd∶YAG/KTP腔内倍频固体激光器Z型谐振腔进行了理论分析,采用Matlab对腔参数进行了理论计算.通过理论计算,选择适当腔参数进行了实验研究,当重复频率为9 kHz,输入电功率302.5W时,获得了17.27W绿光输出,输出不稳定性小于0.9％,电光转化效率为5.7％,光束质量因子M2x=3.351,M2y=3.759,发散角为0.68 mrad.%According to ABCD transmission matrix theory, A Z-type resonator used for laser diode (LD) side-pumped intracavity frequency-doubled Nd:YAG /KTP laser was analyzed and calculated by software Matlab. We selected a set of proper cavity parameters, at 9kHz repetition frequency and 302. 5W input electrical power, a 17. 27W green laser was obtained with an electrical-optical conversion efficiency of 5. 7% and divergence angle of 0. 68mrad, the beam quality was M2x = 3. 351, M2y = 3. 759,output instability was less than 0. 9%.
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