摘要
提出了一种紧凑高效的吉赫兹(GHz)1.34μm Nd…GdVO_4/V…YAG调Q锁模激光器。采用激光二极管进行端面抽运,将紧凑线性腔结构与透过率为10%的输出耦合镜相结合。优化了激光晶体的相关实验条件,理论分析了激光晶体的相关特性。实验中使用了Nd…GdVO_4晶体,Nd^(3+)离子掺杂质量分数为0.2%,V…YAG晶体的初始透过率为83%。利用该晶体实现了重复频率高达2GHz的锁模脉冲,所得锁模调制深度接近100%,调Q锁模激光器的最大输出功率可达715mW。基于波动机制理论,模拟了单个调Q包络下的锁模脉冲图形,所得理论结果与实验结果相符。
A compact and efficient GHz Nd： GdVO4/V： YAG Q-switched mode-locked laser at 1.34 μm is proposed. A laser diode is used for end-pumping, and a compact and linear cavity is combined with an output coupler with transmittance of 10%. Correlation experimental conditions of laser crystal are optimized, and correlation properties of laser crystal are theoretical analyzed. ANd.＂ GdVO4 crystal is used in experiment. The Nd3＋ doping mass concentration is 0.2%, and the initial transmission of V： YAG crystal is 83%. The repetition rate of mode-locked pulse is up to 2 GHz, and nearly 100% mode-locked modulation depth can be obtained. The maximum output power of the Q-switched mode-locked laser is 715 roW. Based on the fluctuation mechanism theory, a mode-locked pulse figure of single Q-switched envelope is simulated, and the simulation results agree well with the experimental results.
出处
《激光与光电子学进展》
CSCD
北大核心
2017年第6期189-195,共7页
Laser & Optoelectronics Progress
基金
国家自然科学基金(61108021)
中央高校基本科研业务费专项资金(2013JBM091
S16JB00010)
