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报道了半导体抽运的Nd:YAG叠片热容激光器的理论与实验研究,并用热容激光器的理论模型计算了在一定的工作时间和介质温升内激光输出特性,用Zemax软件对其抽运结构进行了模拟计算。实验中采用的4片Nd:YAG晶体尺寸均为63.5mm×38.5mm×7mm,抽运平均功率约110W,重复频率为10Hz,占空比为0.2%,获得了最大19.1W的1064nm激光输出,光光效率约17.4%。最后对两种抽运结构的叠片激光器进行了比较,提出了下一步的改进方案。
The theoretical and experimental studies on the semiconductor pumped Nd: YAG lamination heat capacity lasers are reported. The laser output characteristics of the Nd: YAG lamination heat capacity lasers are calculated with the theoretical model of a heat capacity laser. The laser output characteristics are obtained with the Zemax software The structure is simulated. The experimental results show that the 4 Nd: YAG crystals are 63.5mm × 38.5mm × 7mm, the average pumping power is about 110W, the repetition frequency is 10Hz, the duty cycle is 0.2%, and the maximum 19.1W 1064nm laser output is obtained. Light efficiency of about 17.4%. Finally, two types of stacked lasers with pumping structure are compared, and the next improvement is proposed.