光学学报, 2013, 33 (s1): s114002, 网络出版: 2013-06-25
310 W全固态准连续Nd:YAG绿光激光器
310 W All-Solid-State Quasi-Continuous-Wave Nd:YAG Green Laser
激光器 绿光激光器 腔内倍频 全固态激光 准连续波 lasers green laser intracavity frequency-doubling Nd:YAG Nd:YAG all-solid-state laser quasi-continuous-wave
摘要
报道了一种侧面抽运双Nd:YAG棒串接的高功率全固态准连续绿光激光器。设计了非对称直通谐振腔结构，以90°石英旋转片补偿热致双折射，采用双声光Q开关调制，采用Ⅱ类临界相位匹配LBO晶体腔内倍频，在总抽运光功率约1.8 kW，重复频率为10 kHz时，获得了最大平均功率为310 W、脉冲宽度为51 ns的532 nm绿光输出，光束质量因子M2约为40，光光转换效率约为17.2%。实验验证了石英旋转片补偿热致双折射的作用。
Abstract
A side-pumped dual rod all-solid-state quasi-continous-wave Nd:YAG green laser with high-power output is reported. An asymmetry linear resonator, with birefringence compensation by a 90° quartz rotator, dual Q-switched, intracavity frequency-doubling with a type-ⅡLBO, is designed. The maximum output power of 310 W is measured at a repetition rate of 10 kHz and a total optical pumped power of about 1.8 kW. The pulse duration is 51 ns at 532 nm. The beam quality factor M2 is about 40. The optical-to-optical efficiency is about 17.2%. The birefringence compensation effect of quartz rotator is analyzed in experiment.
熊景平, 李嘉强, 安振杰, 谈小虎, 陈日升, 张晓卫, 张志忠. 310 W全固态准连续Nd:YAG绿光激光器[J]. 光学学报, 2013, 33(s1): s114002. Xiong Jingping, Li Jiaqiang, An Zhenjie, Tan Xiaohu, Chen Risheng, Zhang Xiaowei, Zhang Zhizhong. 310 W All-Solid-State Quasi-Continuous-Wave Nd:YAG Green Laser[J]. Acta Optica Sinica, 2013, 33(s1): s114002.
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