摘要
报道了一种基于光纤饱和吸收体的掺镱全光纤调Q激光器,为了获得较高峰值功率较窄脉宽的激光脉冲输出,利用掺镱光纤的可饱和吸收效应,以20/130μm规格的大模场双包层掺镱光纤作为增益光纤,以10/130μm规格的单模双包层掺镱光纤作为可饱和吸收体来实现被动调Q。该激光器采用全光纤化的结构,结构紧凑,以较低的成本获得了较为高效的脉冲输出。最终获得了平均功率最高为3W,直线效率约为30%,重复频率为10~100 kHz可调,脉宽最窄为344 ns,光谱宽度为0.05 nm、中心波长为1064 nm的激光输出。
An Yb-doped all-fiber Q-switched laser based on fiber saturable absorber was reported.In order to obtain laser pulses output with a higher peak power and a narrower pulse width,the saturable absorption effect of Ytterbium-doped fiber was used with laser.The 20/130μm large mode double cladding Yb-doped fiber was used as the gain fiber.The 10/130μm single mode double cladding Yb-doped fiber was used as saturable absorber.The laser adopted a all fiber-optic structure,and a relatively stable pulse output was obtained at a relatively low cost.The maximum average power was 3 W,the slope efficiency was 30%,the repetition rate was 10–100 kHz,and the minimum pulse duration was 344 ns with the spectral width of 0.05 nm and the central wavelength of 1064 nm.
作者
祖嘉琦
武帅
张海涛
耿东晛
卢姁
Zu Jiaqi;Wu Shuai;Zhang Haitao;Geng Dongxian;Lu Xu(Center for Photonics and Electronics,Department of Precision Instruments,Tsinghua University,Beijing 100084,China;5111 mailbox,Beijing 100094,China;Scientific Equipments Company of Sichuan Province,Chengdu 610023,China;32021 Force,Beijing 100094,China)
出处
《红外与激光工程》
EI
CSCD
北大核心
2020年第6期143-148,共6页
Infrared and Laser Engineering
基金
国家自然科学基金(61475081)
四川省科技计划资助(2018JZ0015)。
