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.

引用

页数：5

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