基于锥形掺镱光纤实现20 kW高光束质量激光输出

肖虎; 潘志勇; 陈子伦; 马鹏飞; 刘伟; 杨欢; 闫志平; 王蒙; 奚小明; 李智贤; 杨保来; 杨林永; 黄良金; 黄值河; 曹涧秋; 王小林; 王泽锋; 陈金宝

doi:10.11884/HPLPB202436.230418

基于锥形掺镱光纤实现20 kW高光束质量激光输出

doi: 10.11884/HPLPB202436.230418

肖虎^{1, 2,},
潘志勇^{1, 2},
陈子伦^{1, 2},
马鹏飞^{1, 2},
刘伟^{1, 2},
杨欢^{1, 2},
闫志平^{1, 2},
王蒙^{1, 2},
奚小明^{1, 2},
李智贤^{1, 2},
杨保来^{1, 2},
杨林永^{1, 2},
黄良金^{1, 2},
黄值河^{1, 2},
曹涧秋^{1, 2},
王小林^{1, 2},
王泽锋^{1, 2, ,},
陈金宝^{1, 2, ,}

1.
国防科学技术大学前沿交叉学科学院，长沙 410073
2.
国防科技大学南湖之光实验室，长沙 410073

详细信息

作者简介:
肖　虎，xhwise@163.com

通讯作者:
王泽锋，zefengwang_nudt@163.com

陈金宝，kdchenjinbao@aliyun.com。

中图分类号: TN242
计量
- 文章访问数: 320
- HTML全文浏览量: 122
- PDF下载量: 111
- 被引次数: 0
出版历程
- 收稿日期: 2023-11-27
- 修回日期: 2024-01-04
- 录用日期: 2024-01-10
- 网络出版日期: 2024-01-15
- 刊出日期: 2024-01-15

20 kW fiber laser with high beam quality enabled by tapered ytterbium-doped fiber

Xiao Hu^{1, 2
,},
Pan Zhiyong^{1, 2},
Chen Zilun^{1, 2},
Ma Pengfei^{1, 2},
Liu Wei^{1, 2},
Yang Huan^{1, 2},
Yan Zhiping^{1, 2},
Wang Meng^{1, 2},
Xi Xiaoming^{1, 2},
Li Zhixian^{1, 2},
Yang Baolai^{1, 2},
Yang Linyong^{1, 2},
Huang Liangjin^{1, 2},
Huang Zhihe^{1, 2},
Cao Jianqiu^{1, 2},
Wang Xiaolin^{1, 2},
Wang Zefeng^{1, 2
, ,},
Chen Jinbao^{1, 2
, ,}

1.
College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China
2.
Nanhu Laboratory, National University of Defense Technology, Changsha 410073, China

摘要

摘要:
锥形光纤能够有效兼顾非线性效应抑制和模式控制，具备实现高功率、高光束质量光纤激光的潜力。近期国防科技大学研制了锥形掺镱光纤，采用1018 nm光纤激光后向级联泵浦实现了20.2 kW 激光输出，光束质量β因子平均值优于2，拉曼抑制比为33 dB。研究结果展示了锥形光纤在实现万瓦级高光束质量激光方面的优势。
- 光纤激光器 /
- 级联泵浦 /
- 锥形光纤 /
- 光束质量
Abstract:
The tapered fiber with varied core diameter along the longitudinal direction has a unique advantage in balancing Stimulated Raman Scattering (SRS) suppression and beam quality, making it a promising approach for purchasing high power laser with high beam quality. Recently, a monolithic high power fiber laser counter pumped by 1018 nm fiber lasers has been experimentally established employing tapered ytterbium-doped fiber made in house. A maximum power of 20.2 kW is achieved with the beam quality factor β<2 and Raman-suppression ratio of 33 dB. The results have demonstrated the great potential of tapered fiber in power scaling to tens of kW fiber laser while achieving good beam quality.
- fiber laser /
- tandem pump /
- tapered fiber /
- beam quality

HTML全文

图 1 20 kW光纤激光器结构示意图

Figure 1. Schematic diagram of the 20 kW fiber laser

下载: 全尺寸图片幻灯片

图 2 激光输出功率及测试结果

Figure 2. Laser output power and measurement results

下载: 全尺寸图片幻灯片

参考文献(9)

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