复合Nd∶YAG晶体及其在大功率蓝光激光器中的应用

The Composite Nd∶YAG Crystal and Its Application in High Power Blue Laser

从大功率蓝光激光器的特点入手分析了Nd∶YAG准三能级特性,通过理论上对比三种不同结构激光晶体内的温度场分布,指出复合晶体在降低激光晶体热沉积方面的有效性。并通过采用复合晶体得到473nm激光输出功率为1.38W,泵浦光-倍频光的光光转换效率达7.5%,证明了复合晶体的优越性。

Based on the characteristic of high power blue laser, the quasi-three-energy-level was analyzed. Through the comparison of distribution of temperature field in three different structure crystals, the high efficiency of composite Nd：YAG in remove heat from laser crystal was indicated. And by the experiment of V cavity, the output power at 473nm was 1.38W, the efficiency was 7.5%, and the superiority of the composite crystal was proved.