275 nm ultraviolet laser with 351 mW continuous-wave output in a Pr:YLF laser pumped by a blue laser diode at 444.2 nm  

444.2 nm蓝光半导体泵浦掺镨氟化钇锂晶体连续351 mW输出275 nm紫外激光器

作　　者：ZHENG Quan XIAO Hui-dong CHEN Xi WANG Yan WANG Yu-ning LIU Hui-zhen TIAN Dong-he WANG Jin-yan YAO Yi 郑权;肖辉东;陈曦;王彦;王禹凝;刘会珍;田东贺;王金艳;姚矣(中国科学院长春光学精密机械与物理研究所,吉林长春130033;长春新产业光电技术有限公司,吉林长春130012)

机构地区：[1]Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China [2]Changchun New Industries Optoelectronics Technology Co.Ltd.,Changchun 130012,China

出　　处：《中国光学(中英文)》2025年第2期376-381,共6页Chinese Optics

基　　金：吉林省科技发展计划项目(No.20230201062GX)。

摘　　要：This paper describes what is thought to be the first generation of a continuous wave deep ultraviolet laser at 275 nm by efficient frequency doubling of a blue-diode-pumped Pr:YLF laser at 550 nm.By employing a novel fast-axis collimated blue semiconductor laser as the pump source,combined with a folded cavity and innovation coating technology,and utilizing a Brewster-cut BBO crystal for intracavity frequency doubling,TEM00 mode deep UV laser radiation at 275 nm with an output power of 351 mW is obtained.This marks the first report of achieving 275 nm laser generation based on Pr:LiYF4 to date.本文创新性地采用蓝光半导体泵浦掺镨氟化钇锂晶体产生550 nm激光,并通过高效倍频技术,获得275 nm连续紫外激光输出。采用全新的快轴准直的蓝光半导体激光器作为泵浦源,结合折叠腔和新颖的镀膜技术,并采用布切的BBO晶体进行腔内倍频,获得了351 mW的275 nm基模深紫外激光输出。目前为止,这是首次基于掺镨氟化钇锂获得275nm激光的报道。

关 键 词：CW ultraviolet laser 275 nm laser Pr:YLF frequency doubling 

分 类 号：TP248.1[自动化与计算机技术—检测技术与自动化装置]