摘要
报道了一种波长为1319nm的准连续Nd∶YAG平面波导激光放大器。种子源为基于侧面抽运棒状Nd∶YAG激光头的振荡器,放大器的激光增益介质为平面波导结构Nd∶YAG。YAG平面波导的尺寸大小为0.6mm×10mm×60mm,中心区域0.1mm×10mm×50mm为掺杂区,周围均为非掺杂YAG。放大器的抽运源为半导体激光器阵列,抽运光经过耦合后从后端面进入平面波导材料,种子光从前端进入单通放大输出。Nd∶YAG平面波导与两个微通道热沉焊接起来实现良好的散热,端面镀1319、1064和808nm高透膜层。当抽运电流为110A、重复频率为200Hz时,获得了功率为36mJ的1319nm激光输出,放大光光效率为8.3%。
A quasi continuous wave Nd∶YAG planar waveguide laser amplifier with a wavelength of 1319 nm is reported.The seed source is an oscillator based on a side-pumped rod Nd:YAG laser model,and the gain medium of the amplifier is a planar waveguide Nd∶YAG.The size of the YAG planar waveguide is 0.6 mm×10 mm×60 mm,the central area 0.1 mm×10 mm×50 mm is the doped region,and the surrounding area is undoped YAG.The pump source of the amplifier is a diode laser array,which is coupled from the rear end into the planar waveguide gain medium.The seed laser is coupled into the gain medium via the end facet,and a single-pass amplification is introduced.In order to achieve the good heat dissipation,two micro channel heat sinks are welded onto the Nd∶YAG planar waveguide.The end facets are coated high transmission at 1319,1064 and 808 nm.When the driving current of the diode laser arrays is 110 Aand the pulse repetition rate is 200 Hz,the output of 36 mJ1319 nm laser is obtained,and the optical to optical efficiency is 8.3%.
作者
林伟平
张雷
王君涛
陈月健
徐浏
汪丹
周唐建
童立新
鲁燕华
高清松
Lin Weiping;Zhang Lei;Wang Juntao;Chen Yuejian;Xu Liu;Wang Dan;Zhou Tangjian;Tong Lixin;Lu Yanhua;Gao Qingsong(Institute of Applied Electronics,China Academy of Engineering Physics,Mianyang,Sichuan621900,China;Key Laboratory of Science and Technology on High Energy Laser,China Academy of Engineering Physics,Mianyang,Sichuan621900,China;Gradute School,China Academy of Engineering Physics,Beijing 100088,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2019年第1期220-224,共5页
Laser & Optoelectronics Progress
基金
国家自然科学基金青年基金(61705209)
