摘要
充分利用全固态激光器结构紧凑的优点,设计了一套紧凑型直腔式457nm蓝光激光器系统。在设计过程中,针对Nd…YVO4激光晶体的自身性质及其产生914nm激光的相关光学特性,着重对该激光系统的激光阈值进行分析,对温控系统及谐振腔参数进行优化。最终实现了Nd…YVO4激光晶体914nm波长激光运转,并在此基础上利用BIBO晶体进行腔内倍频获得457nm激光输出。入射抽运光功率为24.2W时,最高输出功率为1.56W,光-光转换效率为6.45%,功率稳定度低于2.98%,M2因子为1.3。
In order to give full play to the advantages of compact all-solid-state lasers, a compact straight cavity 457 nm blue laser system is designed. Based on the nature of the Nd： YVO4, the analysis of laser threshold of quasithree-level laser system and the parameters optimization of resonator cavity are obtained. The laser of Nd： YVO4 operation at 914 nm and its 457 nm second harmonic is realized by intracavity frequency doubling with BIBO nonlinear crystal. The highest output power at 457 nm reaches 1.56 W with an incident pump power of 24.2 W, and the optical-to-optical conversion efficiency is higher than 6.45 %, also the fluctuation of the blue output power is less than 2.98% and M2 factor is 1.3.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2013年第2期37-42,共6页
Chinese Journal of Lasers
基金
广东省省部产学研项目(2009B091300072
2010B090500022
2009B090600040)
中央高校基本科研业务费专项(21611515)资助课题
