激光二极管抽运Nd∶YVO4/YVO4复合晶体激光器  

Laser Diode-Pumped Nd∶YVO4/YVO4 Composite Crystal Laser

作　　者：李晓敏[1] 卓壮[1,2] 李涛[1] 杨宏志[3] 李健[1] 

机构地区：[1]山东师范大学物理与电子科学学院,山东济南250014 [2]山东大学山大鲁能信息科技有限公司,山东济南250100 [3]山东大学信息科学与工程学院,山东济南250100

出　　处：《中国激光》2007年第1期41-44,共4页Chinese Journal of Lasers

基　　金：山东省科技厅科技攻关计划(031080125)资助项目。

摘　　要：在高功率激光二极管（LD）抽运的情况下,对比分析了Nd∶YVO4/YVO4复合晶体和Nd∶YVO4单一晶体的激光特性。实验证明,复合晶体能够有效地降低晶体内的温度梯度,减小由端面变形带来的热透镜效应,获得比单一晶体高出许多的输出功率。采用Z型折叠腔,研究了Nd∶YVO4/YVO4复合晶体KTP倍频特性,当抽运功率为17W时,获得了6.23W的绿光输出,抽运光到绿光的转换效率高达37%。The optical properties of Nd：YVO4/YVO4 composite crystal and Nd：YVO4 single crystal were studied contrastedly in the high power laser diode-pumped solid-state lasers. It was demonstrated that the composite crystal can effectively reduce the temperature gradient of crystal, relieve the thermal lens effect and get higher output power. The frequency-doubling property of Nd： YVO4/YVO4 composite crystal with KTP was studied in a ＂Z- shaped＂ folded cavity. With the incident pump power of 17 W, 6.23 W green light was achieved with an optical conversion efficiency of 37 %.

关 键 词：激光器 热键合 激光二极管端面抽运 复合晶体 Z型折叠腔 

分 类 号：TN248.1[电子电信—物理电子学]