中国激光, 2015, 42 (4): 0402003, 网络出版: 2015-04-02
激光二极管抽运Nd∶YAG/Nd∶YVO4共轴双晶体Cr∶YAG被动调Q激光器
Laser-Diode-Pumped Coaxial Double Crystals Nd∶YAG/Nd∶YVO4 Cr∶YAG Passively Q-Switched Laser
摘要
报道了一种由激光二极管抽运的Nd∶YAG/Nd∶YVO4 共轴双晶体的Cr∶YAG 被动调Q 激光器，利用这种方式相比于传统的Nd∶YAG/Cr∶YAG 激光器提高了输出激光的偏振比，在非线性频率变换过程中得到了更高的转换效率，当抽运功率为10 W 时获得了2.8 W 的被动调Q 1064 nm 激光输出，偏振比大于80∶1，激光重复频率为15 kHz，脉冲宽度为7 ns，采用LBO 作为非线性频率变换晶体，最终获得了223 mW 的355 nm 紫外激光输出。
Abstract
A laser diode pumped Nd∶YAG/Nd∶YVO4/Cr∶YAG passively Q-switched laser is reported. Compared with Nd∶YAG/Cr∶YAG laser, the polarization ratio is improved in this configuration, the higher conversion efficiency is achieved in optics nonlinear frequency conversion, an output power of 2.8 W at 1064 nm with repetition rate of 15 kHz and pulse width of 7 ns is achieved and the polarization ratio of the laser is more than 80∶1. 223 mW output power at 355 nm is obtained using two LBO crystals as optics nonlinear frequency conversion crystal.
李斌, 丁欣, 孙冰, 盛泉, 姜鹏波, 张巍, 刘简, 范琛, 张海永, 姚建铨. 激光二极管抽运Nd∶YAG/Nd∶YVO4共轴双晶体Cr∶YAG被动调Q激光器[J]. 中国激光, 2015, 42(4): 0402003. Li Bin, Ding Xin, Sun Bing, Sheng Quan, Jiang Pengbo, Zhang Wei, Liu Jian, Fan Chen, Zhang Haiyong, Yao Jianquan. Laser-Diode-Pumped Coaxial Double Crystals Nd∶YAG/Nd∶YVO4 Cr∶YAG Passively Q-Switched Laser[J]. Chinese Journal of Lasers, 2015, 42(4): 0402003.
PDF全文
