20MHz自启动克尔透镜锁模飞秒钛宝石激光器

Self-starting Kerr-lens Mode-locked Ti∶Al_2O_3 Laser at Repetition Rates of 20 MHz

报道了利用半导体可饱和吸收镜 (SESAM )实现自启动的低重复率锁模飞秒钛宝石激光器 ,重复率为 2 0MHz ,锁模脉宽 42fs。

In this letter an approach to obtaining low repetition rate directly from a Kerr lens mode locked Ti∶Al 2O 3 laser by using a multiple pass cavity (MPC) is reported. A self starting mode locked laser (with a SESAM) generating pulses of 42 fs at a repetition rates of 20 MHz is obtained.