蓝光二极管抽运Pr:YLF腔内倍频连续深紫外激光器  

Continuous deep ultraviolet laser by intracavity frequency doubling of blue laser diode pumped Pr∶YLF

作　　者：牛娜 窦微 浦双双 刘天虹 魏程亮[1] 宋海龙 郑权 NIU Na;DOU Wei;PU Shuang-shuang;LIU Tian-hong;WEI Cheng-liang;SONG Hai-long;ZHENG Quan(Changchun New Industries Optoelectronics Technology Co.,Ltd,Changchun 130012,China;Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Science,Changchun 130033,China)

机构地区：[1]长春新产业光电技术有限公司,吉林长春130012 [2]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《中国光学》2021年第6期1395-1399,共5页Chinese Optics

基　　金：吉林省科技攻关计划(No.20170203013GX)。

摘　　要：为了探究波长200~280 nm内连续深紫外激光输出,本文采用输出功率为1.4 W、中心波长为444 nm和输出功率为1.5 W、中心波长为469 nm的两个蓝光激光二极管(LD)合光作为泵浦源,端面泵浦长度为5 mm的国产Pr:YLF晶体,再利用长度为7 mm的偏硼酸钡(BBO)作为倍频晶体进行腔内倍频,通过优化腔镜膜系设计和加入全波片配合波长选择,实现了Pr:YLF晶体的弱谱线倍频输出,最终成功获得了最大输出功率为8.37 mW、中心波长为268.89 nm的连续深紫外激光。In order to explore the continuous deep ultraviolet laser output within the wavelength of 200~280 nm,a 5 mm long domestic Pr∶YLF crystal was pumped by the combine of 1.4 W blue laser diode at 444 nm and 1.5 W blue laser diode at 469 nm,and the BBO with a length of 7 mm was used as the frequency doubling crystal.By optimizing the resonator mirror coating and inserting a full wave plate for wavelength competi-tion,it makes the output of weak spectra of Pr∶YLF possible.At last,the continuous deep ultraviolet laser with a maximum power of 8.37 mW and center wavelength of 268.89 nm was achieved.

关 键 词：激光器 连续深紫外激光器 掺镨氟化钇锂晶体 蓝光激光二极管 

分 类 号：TN248.1[电子电信—物理电子学]