We report on diode pumped cryogenic Yb: Lu₃Al₅O₁₂ (LuAG) laser in the continuous-wave and pulsed regime. Under given experimental condition, we determined an optimum crystal temperature of 140 K for efficient laser operation. A maximum output power of 10.46 W with slope efficiency values of 48.6 and 67% with respect to incident and absorbed power respectively were achieved for an output coupler transmission of 40%. Yb:LuAG laser performed significantly better at 140 K with an output power 16 times and slope efficiency 7 times better than the values at 240 K. Self-starting passively Q-switched Yb:LuAG lasers were also characterized using Cr:YAG saturable absorbers with three different initial transmissions. A maximum pulse energy of 0.215 mJ and a peak power of 1.46 kW were obtained corresponding to the shortest pulse duration of 148 ns.

我们报道了二极管泵浦低温Yb：Lu ₃ Al ₅ O ₁₂（LuAG）激光器处于连续波和脉冲状态。在给定的实验条件下，我们确定了140 K的最佳晶体温度，以进行有效的激光操作。对于40％的输出耦合器传输，最大输出功率为10.46 W，斜率效率分别为入射功率和吸收功率的48.6和67％。Yb：LuAG激光器在140 K时的性能明显好于输出功率16倍，斜率效率比240 K时的值高7倍。自启动被动调Q的Yb：LuAG激光器还使用Cr：YAG饱和吸收剂进行表征。三种不同的初始变速器。对应于最短的脉冲持续时间148 ns，获得了0.215 mJ的最大脉冲能量和1.46 kW的峰值功率。