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为获得用于工业应用的高功率、高光束质量脉冲激光输出。理论分析了谐振腔结构,设计出双棒串接、双氙灯泵浦的平行平面腔脉冲Nd∶YAG激光器,使用像传递系统和90°偏振旋转器有效补偿热致双折射效应,激光器稳定工作在基模动力学稳定区边界时,实现了平均功率971 W、光束参数积11.43 mm.mrad的激光输出,与理论分析相符。
For high power, high beam quality pulsed laser output for industrial applications. The structure of the resonator was analyzed theoretically. The parallel-plane pulsed Nd:YAG laser pumped by twin bars and bi-xenon lamps was designed. The image transfer system and the 90 ° polarization rotator were used to effectively compensate the thermal induced birefringence effect. The laser was stable at The laser output of 971 W average power and 11.43 mm.mrad beam parameter product was achieved at the boundary of the fundamental mode dynamic stability zone, which was consistent with the theoretical analysis.