LD侧面泵浦Nd∶YVO4高重频紫外激光器  

LD-side Pumping Nd∶YVO4 High Repetition Rate UV Laser

作　　者：崔建丰[1,2] 岱钦 邬小娇[2] 李福玖 李业秋 乌日娜[1] 杨帆[1] CUI Jian-feng;DAI Qin;WU Xiao-jiao;LI Fu-jiu;LI Ye-qiu;WU Ri-na;YANG Fan(School of Science,Shenyang Ligong University,Shenyang 110159,China;Anshan ZY Laser Technology Co.,Ltd.,Anshan 114044,China)

机构地区：[1]沈阳理工大学理学院,辽宁沈阳110159 [2]鞍山紫玉激光科技有限公司,辽宁鞍山114044

出　　处：《发光学报》2019年第8期1011-1014,共4页Chinese Journal of Luminescence

基　　金：国家基金委-辽宁省联合基金(U1608259);国家自然科学基金(61705145);辽宁省自然科学基金(201801926);辽宁省科技计划项目(2014220040);辽宁省高等学校创新人才支持计划(LR2016079);沈阳理工大学激光与光信息技术辽宁省重点实验室开放基金资助课题(1010131008603)资助项目~~

摘　　要：研制了二极管(LD)侧面泵浦Nd∶YVO4高重复频率355nm紫外激光器,针对Nd∶YVO4激光晶体的增益高、泵浦带宽宽的优点,激光器采用LD均匀三角侧面泵浦结构,利用声光调Q方式,选用Ⅰ类和Ⅱ类相位匹配的LBO非线性晶体,设计了腔内三倍频V型谐振腔结构,获得了高重频、高增益的355nm紫外激光输出。在泵浦LD电流为30A、重复频率为20kHz时,355nm激光输出最大平均功率达到了8.5W,激光脉冲宽度为37ns,1064nm基频光到355nm紫外激光的光-光转换效率为25.8%,紫外激光泵浦阈值约为16A。The LD side-pumped Nd∶YVO 4 high repetition rate 355 nm ultraviolet laser is developed.According to the advantages of high gain and wide pump bandwidth,LD side-pumped structure is designed in the pumping mode of the laser.Using the acousto-optic Q-switched method and selecting the LBO nonlinear crystal with typeⅠand typeⅡof phase matching,the V-resonance-cavity stucture of the intra-cavity triple frequency is designed.The output of 355 nm ultraviolet laser with high repetition rate and high gain is obtained.A maximum average output power at 355 nm of 8.5 W is obtained when the repetition rate is 20 kHz and the pump current is 30 A.Meanwhlie,the corresponding pulse width is 37 ns at 355 nm,the optical-optical conversion efficiency is 25.8%and the pumping threshold of the UV laser is about 16 A.

关 键 词：LD侧面泵浦Nd∶YVO4 紫外激光 高重频 

分 类 号：TN248.1[电子电信—物理电子学]