瓦级激光二极管端面抽运351nm紫外激光器  

Watt-class Laser Diode End-pumped 351 nm Ultraviolet Laser

作　　者：崔建丰[1,2] 高涛 张亚男 王迪 岱钦[1] 姚俊[1] CUI Jian-feng GAO Tao ZHANG Ya-nan WANG Di DAI Qin YAO Jun(School of Science, Shenyang Ligong University, Shenyang 110159, China Anshan ZY Laser Technology Co. , Ltd. , Anshan 114000, 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114000

出　　处：《发光学报》2016年第11期1367-1371,共5页Chinese Journal of Luminescence

基　　金：科技部科技型中小企业技术创新基金(C262100678);辽宁省科技计划(2014220040);沈阳市科技计划(F16-210-6-00)资助项目

摘　　要：研制了输出功率达瓦级的351 nm准连续紫外激光器。激光器采用激光二极管(LD)端面抽运Nd∶YLF晶体和声光调Q技术,实现了1 053 nm准连续基波振荡。在结构简单的V型腔中,两块Li B3O5(LBO)晶体对基频光进行二倍频和三倍频,获得了高功率351 nm准连续紫外激光输出。在LD抽运功率为14 W、声光调Q激光器的调制频率为1 k Hz的工作条件下,得到351 nm紫外激光平均输出功率为1.12 W、脉冲宽度为34 ns、单脉冲能量为1.12 m J、峰值功率达32.94 k W。LD抽运光到351 nm紫外激光的光-光转换效率达到8%,电光效率为3.4%,光束质量良好。A watt-class quasi-continuous 351 nm ultraviolet laser was fabricated by using frequencydoubled and frequency-tripled the radiation at 1 053 nm from laser diode（ LD） end-pumped Nd ∶YLF crystal under acoustic-optical Q-switched in a simple V-shaped cavity with two LiB3O5（ LBO）crystals. An average output power at 351 nm of 1. 12 W is obtained at repetition rate of 1 k Hz and pumped power of 14 W. The single pulse energy is 1. 12 mJ with the pulse width of 34 ns at 351 nm,and the peak power is up to 32. 94 kW. The optical-optical conversion efficiency is 8%,and the electro-optical conversion efficiency is 3. 4%. The beam quality is satisfactory.

关 键 词：激光器 351nm紫外激光器 声光调Q Nd∶YLF晶体 

分 类 号：TN248.1[电子电信—物理电子学]