Mode-locked ytterbium-doped fiber laser based on offset-spliced graded index multimode fibers

被引：31
作者：
Dong, Zhipeng [1 ]
Li, Shujie [1 ]
Chen, Ruishan [1 ]
Li, Hongxun [1 ]
Gu, Chun [1 ]
Yao, Peijun [1 ]
Xu, Lixin [1 ]
机构：
[1] Univ Sci & Technol China, Dept Opt & Opt Engn, Hefei 230026, Anhui, Peoples R China
来源：
OPTICS AND LASER TECHNOLOGY | 2019年 / 119卷
基金：
中国国家自然科学基金;
关键词：
Fiber laser; Mode-locked laser; Ultrafast optics; Kerr effect; Pulse laser; SATURABLE ABSORBER; 2ND-HARMONIC GENERATION; BLACK PHOSPHORUS; INTERFERENCE;
D O I：
10.1016/j.optlastec.2019.105576
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We developed a passively mode-locked ytterbium-doped fiber laser based on offset-spliced graded index multimode fibers (OS-GIMFs), where OS-GIMFs play the role of saturable absorbers. The modulation depth of the saturable absorber is 15.28%, which significantly improves the performance of saturable absorber by adopting offset-spliced method. A stable mode-locked pulse train at 1040 nm with a 27.32 MHz repetition rate is generated when pump power reaches the threshold. The output pulse-width is a similar to 11 ps and can be compressed to 980 fs by using a pair of gratings. The fiber laser is superior in terms of low cost, high damage threshold, and easy fabrication; thus, it has potential for application in ultrafast photonics and industrial processing.
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页数：5
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