蓝光泵浦高重频声光调QPr:YLF绿光激光器  

Blue Laser Diode-pumped High Repetition Rate Acousto-optic Q-switched Pr:YLF Green Laser

作　　者：姜萌[1] 金龙[1] 刘畅[1] 董渊[1] 金光勇[1] JIANG Meng;JIN Long;LIU Chang;DONG Yuan;JIN Guangyong(School of Physics,Changchun University of Science and Technology,Changchun 130022)

机构地区：[1]长春理工大学物理学院,长春130022

出　　处：《长春理工大学学报（自然科学版）》2022年第6期10-14,共5页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金项目(61505012)。

摘　　要：采用444 nm蓝光激光二极管单端泵浦,首次报道了一种直接获得可见光波段522 nm的高重频脉冲激光器。建立了522 nm Pr:YLF调Q激光器的速率方程,并通过模拟仿真获得了高重频调Q激光器的运转特性。实验中分析了对比不同透过率下对连续激光输出特性的影响。在透过率T=4%时获得最高输出功率为1.273 W的连续激光输出,经过声光Q开关调制后,当泵浦吸收功率为5.69 W时,在20 kHz的重复频率下,获得最高平均功率为106 mW的脉冲激光,脉冲宽度为50.48 ns,峰值功率为105 W,对应的脉冲能量为5.3μJ。A high repetition rate pulsed laser at 522 nm in visible region is reported for the first time,which is pumped by 444 nm blue laser diode.The rate equation of 522 nm Pr:YLF Q-switched laser was established,and the output characteristics of the laser were obtained by simulation.In the experiment,the effects of different transmittances on the output characteristics of continuous laser are analyzed and compared;1.273 W continuous wave laser output is accepted at transmittance T=4%.After acousto-optic Q switch modulation,when the pump absorption power is 5.69 W,a pulsed laser with a maximum average power of 106 mW is obtained at a repetition rate of 20 kHz.The pulse width is 50.48 ns and the peak power is 105 W.Correspondingly,the pulse energy is 5.3μJ.

关 键 词：声光调Q 高重频 Pr:YLF晶体 522 nm 

分 类 号：O482.31[理学—固体物理]