通过对连续种子光源的光强调制，并利用光纤放大器和固体介质放大器结合的混合放大方式，实现了百兆赫兹高重频可调谐单频激光光源。系统在基模输出条件下的最大输出功率为31.9 W，光束质量因子小于1.5，脉冲重复频率达到100 MHz，脉宽1 ns，测量得到的光束线宽小于0.8 GHz。实验结果验证了通过对连续光源进行光强调制获得高重频脉冲光源的可行性，并验证了混合放大方式是获得功率放大的一种有效手段。

100 MHz high repetition rate lasers are experimentally realized with narrow bandwidth and tunable wavelength. A single-frequency CW seed source is modulated by an electro-optical (EO) modulator to achieve pulsed lasers. The pulsed laser is amplified by a fiber amplifier and then by a two-stage solid-state laser amplifier. The maximum output power is 31.9 W in fundamental mode. The M2 factor is less than 1.5. The pulse width is 1 ns with a repetition rate of 100 MHz. The line-width of the output laser is less than 0.8 GHz. The experimental results verify the validity of method to achieve high repetition rate lasers. The combined amplifier with both fiber amplifier and solid-state laser amplifier is approved to be effective to achieve power amplification.