从理论上和系统实验上阐述了一种新型全固化半导体激光抽运探针源。此抽运探针源利用激光增益开关控制的原理 ,通过控制直流偏置电流和射频驱动电流可产生两列重复频率在 1GHz左右 ,脉宽约为 50 ps的激光脉冲序列 ,并且两脉冲序列间的时间延迟在 2 0 0 ps范围可调。 A new type of all-solid-state semiconductor laser pumping probe source is theoretically and systematically described. The pumping probe source utilizes the principle of laser gain switch control to generate two laser pulse sequences with a repetition frequency of about 1 GHz and a pulse width of about 50 ps by controlling the DC bias current and the RF driving current, The time delay is adjustable in the 200 ps range.