摘要
对比研究了808 nm激光二极管列阵侧面泵浦Nd∶YAG陶瓷与Nd∶YAG单晶激光器在连续和被动调Q运转下的激光输出特性。对于Nd∶YAG陶瓷激光器,在145 W泵浦功率,平平谐振腔20%输出耦合镜透过率时,获得最大44.28 W的1 064 nm连续激光输出,光-光转化效率和斜效率分别为30.5%和38.2%.谐振腔中插入初始透过率87.89%的Cr4+∶YAG晶体作为被动调Q开关,在124 W泵浦功率下获得10.03 kHz重复频率,4.62 W平均功率,5.54 kW峰值功率的准连续激光输出。同样实验条件下利用相同尺寸和掺杂浓度的Nd∶YAG单晶进行对比,结果表明Nd∶YAG陶瓷在高功率泵浦下具有广阔的应用前景。
The continuous wave and passively Q-switched output performance of 808 nm laser diode array side pumped Nd∶YAG ceramic and Nd∶YAG single crystal are studied.In the condition of 145 W pump power and 20% output coupler transmission of a plano-plano resonator,the Nd∶YAG ceramic obtains a continuous wave output power of 44.28 W at 1 064 nm,the optical-to-optical conversion efficiency is 30.5%,the slope efficiency is 38.2%.In the same experimental condition,using Cr4＋∶YAG as the passive Q-switcher,the 10.03 kHz quasi-continuous laser is obtained when the original transmission ratio is 87.89%,the average power is 4.62 W and the peak power is 5.54 kW.Compared to the same size and doping concentration of Nd∶YAG single crystal in the same experimental condition,the result shows that Nd∶YAG ceramic laser has a widely application in high power.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2012年第3期278-282,共5页
Acta Armamentarii
基金
吉林省科技支撑重点项目(20100355)
