高功率全固态紫外四倍频激光器
High power all-solid FHG ultraviolet laser
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摘要: 通过对谐振腔腔镜失调灵敏度的计算，分析了声光调Q开关位置对调Q脉冲输出稳定性的影响。计算表明:Q开关放置在输出镜一侧会使脉冲序列更加稳定。在基模输出的条件下，获得了峰值功率为几十kW的调Q脉冲输出。采用BBO晶体对Nd:YAG激光器四倍频，获得了1.9 W的266 nm紫外激光输出。Abstract: The influence of the position of acoustic-optic Q-switch on the output pulse stability is analyzed by calculating the misalignment sensitivity of cavity mirrors. The theoretical results show placing the acoustic-optic Q-switch crystal near the output mirror can improve the stability of pulse train. The peak power of several tens of kilo-watt is achieved in fundamental mode. Using BBO crystal for fourth harmonic generation, a laser power of 1.9 W in ultraviolet is experimentally realized.
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