二极管抽运的全固态锁模Yb激光器能够在1 μm附近输出高平均功率窄脉冲宽度的飞秒激光, 在超快非线性频率变换、飞秒光学频率梳、超快光谱学等领域具有重要应用。利用被动锁模技术和克尔透镜锁模技术, 人们在一系列新型Yb掺杂激光介质中实现了飞秒锁模激光运转。介绍了近年来在二极管抽运全固态飞秒Yb激光器的研究进展, 并展望了进一步提高输出功率和缩短脉冲宽度的技术途径及发展前景。

Diode-pumped all-solid-state mode-locked Yb lasers can generate femtosecond lasers with high average power and narrow pulse width in 1 μm region. The lasers have important applications in such fields as ultrafast nonlinear frequency conversion, femtosecond optical frequency comb, and ultrafast spectroscopy. Using passive mode-locking and Kerr-lens mode-locking technologies, the femtosecond laser operation is realized in a series of novel Yb-doped laser mediums. In this paper, the progress of diode-pumped all-solid-state mode-locked femtosecond Yb lasers is reviewed. The technical approaches and development prospects of power scaling and pulse shortening are proposed as well.