2 x 3 kW bidirectional output fiber oscillator employing spindle-shaped ytterbium-doped fiber

被引：0
|
作者：
Zeng, Lingfa [1 ,2 ]
Yang, Baolai [1 ,2 ]
Zhong, Penglin [1 ]
Yang, Huan [1 ,2 ]
Wang, Peng [1 ,2 ]
Yan, Zhiping [1 ,2 ]
Xi, Xiaoming [1 ,2 ]
Huang, Liangjin [1 ,2 ]
Zhang, Hanwei [1 ,2 ]
Wang, Xiaolin [1 ,2 ]
Pan, Zhiyong [1 ,2 ]
Han, Kai [1 ,2 ]
Wang, Zefeng [1 ,2 ]
机构：
[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China
[2] Natl Univ Def Technol, Nanhu Laser Lab, Changsha 410073, Peoples R China
来源：
CHINESE OPTICS LETTERS | 2024年 / 22卷 / 07期
关键词：
fiber laser; bidirectional output fiber oscillator; spindle-shaped ytterbium-doped fiber; MONOLITHIC FIBER; CONTINUOUS-WAVE; BRAGG GRATINGS; LASER; POWER;
D O I：
10.3788/COL202422.071401
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A 2 x 3 kW-level bidirectional output fiber oscillator is realized by combining the specially designed spindle-shaped ytterbium-doped fiber, non-wavelength-stabilized 976-nm LDs, and grating bandwidth optimization to balance transverse mode instability and stimulated Raman scattering. The maximum output powers at both ends are 3265 and 2840 W, respectively, with a total efficiency of 73.2%. The M 2 factors of the lasers at both ends are about 1.98 and 2.38, respectively. The beam profile at both ends shows that a bidirectional output annular beam fiber oscillator has been realized, which has great potential in practical applications.
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收藏
页数：5
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