1 福州大学化学学院, 福建 福州 351100
2 中国科学院福建物质结构研究所, 福建 福州 351100
3 中国科学院上海硅酸盐研究所, 上海 200000
4 福建师范大学化学与材料学院, 福建 福州 351100
报道了基于a切Er,Yb∶YAl3(BO3)4晶体的被动调Q微片激光器的性能。使用波长为976 nm的光纤耦合半导体二极管作为端面抽运光源,使用初始透过率为96%的Co 2+∶MgAl2O4晶体作为可饱和吸收体,耦合输出镜在1500~1600 nm波段范围的透过率为2.5 %,整个微片激光器的腔长为2.7 mm。在注入功率为7.2 W 时,激光器成功得到了发射波长为1530 nm、重复频率为127 kHz的稳定线性偏振的脉冲输出,对应的脉冲能量和脉冲宽度分别为1.8 μJ和12 ns。
大气光学 a切Er Yb∶YAl3(BO3)4晶体; Co
2+∶ MgAl2O4晶体; 被动调Q 微片激光器 线性偏振 中国激光
2021, 48(13): 1301004
Author Affiliations
Abstract
1 Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
2 Fuzhou University, Fuzhou 350002, China
3 Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
4 Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
5 Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Device, Fuzhou 350108, China
End-pumped by a 976 nm diode laser, a high-repetition-rate microchip laser passively Q-switched by a crystal is reported. At a quasi-continuous-wave pump power of 20 W, a 1553 nm passively Q-switched laser with the repetition rate of 544 kHz, pulse duration of 8.3 ns, and pulse energy of 3.9 μJ was obtained. To the best of our knowledge, the 544 kHz is the highest reported value for the 1.5 μm passively Q-switched pulse laser. In the continuous-wave pumping experiment, the maximum repetition rate of 144 kHz with the pulse duration of 8.0 ns and pulse energy of 1.7 μJ was obtained at the incident pump power of 6.3 W.
1.5?μm microchip laser passive Q-switching Er:Yb:YAl34 crystal high-repetition-rate laser pulse Chinese Optics Letters
2021, 19(7): 071402
