全固态准连续宽调谐激光器研究

All solid state QCW laser with widely tunable wavelength

介绍了一种宽调谐准连续钛宝石激光器，其采用腔内倍频准连续532nmNd：YAG固体激光器作为泵浦源。通过合理的膜系设计，选用棱镜作为调谐元件，仅采用一个输出镜就获得了680～940nm的宽调谐输出。当绿光功率为12w对应重复频率4．5kHz时，在中心波长795nm处，其平均输出功率为2．2w，光谱线宽为5nm。

A continuously tunable Ti： sapphire laser system with a acoustooptic Q-switched intra-cavity frequency doubled Nd：YAG laser at 532 nm as the pump source is introduced. By adaptive coating design, the broad tunability from 680 nm to 940 nm has been obtained just using a single output mirror. Choosing a prism as dispersion element, the linewidth of the center wavelength at 795 nm is narrowed to 5 nm. The maximum average output power is 2.2 W, at the incident pump power of 12 W with the repetition rate of 4.5 kHz.