国内首次完成的高重复率掺钛蓝宝石(简称钛宝石)飞秒激光脉冲的产生和放大实验研究工作,用自行设计的钛宝石激光器实现了最短脉宽为 15 fs、谱宽为 80nm、平均输出功率为 200mW的自锁模脉冲的稳定输出,以此作为种子脉冲,在钛宝石放大器中采用啁啾脉冲再生放大技术,经展宽、放大、压缩后获得重复率 5 kHz、单脉冲能量大于100μJ、脉宽小于50fs的超短脉冲.文中就该系统的设计及实验结果进行了分析和讨论. The first generation of high repetition rate titanium-doped sapphire (abbreviated as Ti-sapphire) femtosecond laser pulse generation and amplification experiments in China was completed. The shortest pulse width was 15 fs and the spectral width was 80 nm. The average output The power of 200mW self-mode-locked pulse of the stable output, as a seed pulse, in the titanium sapphire amplifier using chirped pulse regeneration amplification technology, after broadening, amplification, compression obtained repetition rate 5 kHz, single pulse energy greater than 100μJ, Pulse width less than 50fs ultrashort pulse.This paper analyzes and discusses the system design and experimental results.