连续/脉冲复合体制高功率固体激光技术研究  

High power solid state laser operating in continuous/pulse composite mode

作　　者：刘磊 王文涛 王超 王钢 刘洋 贾佑权 李宁 吕坤鹏 陈露 Liu Lei;Wang Wentao;Wang Chao;Wang Gang;Liu Yang;Jia Youquan;Li Ning;Lv Kunpeng;Chen Lu(Science and Technology on Solid-State Laser Laboratory,North China Research Institute of Electro Optics,Beijing 100015,China)

机构地区：[1]中国电子科技集团公司第十一研究所固体激光技术重点实验室,北京100015

出　　处：《强激光与粒子束》2022年第3期32-37,共6页High Power Laser and Particle Beams

基　　金：中国电科创新基金项目。

摘　　要：常规高功率激光器以连续或者长脉冲方式工作,与物质作用主要是依靠单一“加热”模式,针对其对复杂目标作用能力有限的问题,提出一种连续和脉冲激光同时输出,脉宽、重频可调的新体制高功率激光技术,激光放大链路以特殊时域模式工作,即高重频脉冲与连续运转同时输出,在重频10 kHz时,实现输出功率4800 W,其中连续激光功率3600 W,脉冲激光功率1200 W,脉冲宽度为3.6 ns;在重频100 kHz时,实现输出功率4920 W,其中连续激光功率3100 W,脉冲激光功率1820 W,脉冲宽度为7 ns,光束质量4.8倍衍射极限。Conventional high-power lasers operate in either continuous wave or long pulse mode.They interact with materials mainly through heating,whose effects are very limited when working with complex targets.We propose a novel high-power laser technology based on the combinations of continuous and pulse lasers with adjustable pulse widths and repetition frequencies.Such a“heating/shock”function can be used to improve the effect of high-power laser by aiming the best time-domain eigenvalues of melting and gasification of various target materials.We have achieved output power of 4800 W with 3600 W from continuous wave operation and 1200 W from pulsed operation with repetition rate of 10 kHz and pulse width of 3.6 ns.When the repetition rate is increased to 100 Hz,the resultant output power of the 7 ns pulsed laser is 1820 W,while the power of the continuous laser is 3100 W,and the beam quality is 4.8 times of the diffraction limit.

关 键 词：连续/脉冲 时域 高功率激光 激光放大链路 高重频 

分 类 号：TN241[电子电信—物理电子学]