高重复频率Nd:GdVO_4/LBO红光激光器

Intra-cavity frequency-doubled Nd:YVO_4/LBO red laser with high repetition rate

采用侧面泵浦Nd∶GdVO4晶体的方式,利用I类相位匹配LBO(LiB3O5)晶体进行腔内倍频。腔型采用平凹直腔,利用软件模拟优化谐振腔腔镜曲率半径、腔长以及晶体放置位置等参数,在最大注入电功率750W时获得9.7W的671nm光输出,重复频率10kHz,发散角7.9mrad,电-光转换效率约为1.3%。

By using the side-pumped Nd ：GdVO4 crystal and type-I critically phase-matched LiB3O5 （LBO） crystal in cavity, the red light at 671nm was obtained. The cavity type of plane- concave was used to avoid decreasing the efficiency of doubling frequency caused by astigma- tism. The parameters such as the resonant cavity curvature radius, length and laying position of crystal were optimized by software. The 671 nm red light of 9.7 W was obtained with injec- ted electric power of 750 W. The repetition rate was 10 kHz, the angle of divergence was 7.9 mrad, and the electric-optical conversion efficiency was about 1.3%.