为了研究Cr, Nd∶YAG陶瓷作为太阳光抽运材料的可行性, 采用光纤光谱仪实际测量了太阳光谱及其吸收光谱, 计算了吸收系数曲线, 以及Cr, Nd∶YAG陶瓷吸收谱与太阳光谱的匹配程度, 并在一定假设条件下, 计算了介质的阈值抽运功率密度。结果表明, Cr, Nd∶YAG陶瓷在可见光和近红外波段具有较宽的吸收带, 其各个吸收带的总能量占太阳常数的38-44%, 达到了很高的光谱匹配程度, 证实了Cr, Nd∶YAG陶瓷是太阳光抽运激光器工作物质的理想选择。

In order to study the feasibility of Cr,Nd∶YAG ceramic used for solar-pumped lasers, the absorption spectra of Cr,Nd∶YAG ceramic and solar spectrum were measured with a fiber optic spectrometer actually, the absorption coefficient curve was calculated, the percentage of the solar energy which could be absorbed by Cr,Nd∶YAG ceramics was calculated. In an assumed condition, the threshold of pumped power density of the medium was calculated. The results show that the Cr,Nd∶YAG ceramic have broad absorption bands at visible light and near-infrared band and the matching degree reached 38-44%, so Cr,Nd∶YAG ceramic can be chosen as the most suitable medium for solar-pumped lasers.