利用半导体激光器抽运的NdYAG晶体实现了5.4 mJ、1 kHz的532 nm皮秒激光放大器，由自制的皮秒振荡器种子源、一级再生放大器、一个两通放大器、一个主放大器和倍频器组成。得到绿光的光束质量因子在切线和弧矢方向分别为1.39和1.96，功率不稳定度小于0.3%。

利用885 nm激光二极管直接抽运Nd:LGS实现了1.47 W的1.06 μm激光输出，光光转换效率为17.9%，斜率效率为21.4%，光束质量因子M2在x和y方向分别为1.10和1.12。实验说明了Nd:LGS是一种优质的适于直接抽运的激光晶体。

We experimentally demonstrate a diode-pumped passively mode-locked femtosecond laser with Yb3+-doped yttrium lanthanum oxide ceramic. Mode-locking is achieved by using a semiconductor saturable absorber mirror, and intracavity dispersion is compensated by a pair of SF6 prisms. Laser pulses as short as 357 fs at a central wavelength of 1 075 nm are obtained. The maximum average output power is 670 mW under 4.5 W of pumping power with a slope efficiency of 20%. To the best of our knowledge, this is the shortest pulse generated from Yb-doped yttrium lanthanum oxide ceramic lasers with a sub-500 fs pulse duration.