Wang Jing, Yao Weichao, Liu Jian, Xu Xiaodong, Xu Jun, Leng Yuxin
Opt Express. 2025 Apr 21;33(8):18017-18023. doi: 10.1364/OE.560911.
We report on a Kerr-lens mode-locked Ho laser operating at 2.1 μm, based on a disordered structure crystal Ho:CALYO. The laser-generated ultrashort pulses with a pulse duration of 177 fs and an average output power of 0.81 W at a repetition rate of 90 MHz, with an optical-to-optical efficiency of 11%. By optimizing the system for shorter pulse durations, we achieved pulses as short as 166 fs, though at a reduced output power of 0.18 W. The pulse duration and output power limitations were analyzed and discussed.
我们报道了一种基于无序结构晶体Ho:CALYO的、工作在2.1μm波长的克尔透镜锁模Ho激光器。该激光器产生的超短脉冲，脉冲持续时间为177 fs，重复频率为90 MHz时平均输出功率为0.81 W，光光效率为11%。通过优化系统以获得更短的脉冲持续时间，我们实现了低至166 fs的脉冲，不过此时输出功率降低至0.18 W。对脉冲持续时间和输出功率的限制进行了分析和讨论。
