本文报道利用非线性光学玻璃 SF57实现了二极管泵浦 Nd:YLF 激光器自启动克尔透镜锁模.现有二极管(LD)泵浦的固体激光器大多采用在增益介质的端面镀双色膜作为腔的一个反射镜,我们采用了一个分立的双色镜作为腔的反射镜避免了一系列的热问题.比如:热透镜,热致双折射,热膨胀等.从而改善了激光系统的稳定性,得到1.047μm光脉冲时间半宽为1.5ps,光谱宽度为231GHz,时间带宽积0.347表明脉冲接近变换极限. In this paper, a diode-pumped Nd: YLF laser self-starting Kerr-lens mode-locking is realized by using a nonlinear optical glass SF57. Most existing diode-pumped solid state lasers use a two-color film coated on the end face of the gain medium as a cavity The reflector, which we used as a reflector for the cavity, avoids a series of thermal problems such as thermal lensing, thermal birefringence, thermal expansion, etc. This improves the stability of the laser system, resulting in 1.047 μm light The pulse half-width is 1.5ps, the spectral width is 231GHz, and the time-bandwidth product is 0.347, indicating that the pulse approaches the transformation limit.