LD直接泵浦全光纤激光器输出功率突破20 kW

奚小明; 杨保来; 张汉伟; 潘志勇; 黄良金; 王鹏; 杨欢; 史尘; 闫志平; 陈子伦; 王小林; 韩凯; 王泽锋; 周朴; 许晓军

doi:10.11884/HPLPB202335.220424

LD直接泵浦全光纤激光器输出功率突破20 kW

doi: 10.11884/HPLPB202335.220424

奚小明^{1, 2,},
杨保来^{1, 2},
张汉伟^{1, 2},
潘志勇^{1, 2},
黄良金^{1, 2},
王鹏^{1, 2},
杨欢^{1, 2},
史尘^{1, 2},
闫志平^{1, 2},
陈子伦^{1, 2},
王小林^{1, 2, ,},
韩凯^{1, 2},
王泽锋^{1, 2, ,},
周朴^1, ,,
许晓军^{1, 2}

1.
国防科技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

基金项目: 国家自然科学基金项目(61705266, 61905282, 62005315); 脉冲功率激光技术国家重点实验室主任基金项目（SKL 2020ZR04）

详细信息

作者简介:
奚小明，exixiaoming@163.com

通讯作者:
王小林，chinaphotonics@163.com

王泽锋，zefengwang_nudt@163.com

周　朴，zhoupu203@163.com

中图分类号: TN242
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- 文章访问数: 974
- HTML全文浏览量: 290
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- 被引次数: 0
出版历程
- 收稿日期: 2022-12-20
- 修回日期: 2023-01-18
- 录用日期: 2023-01-19
- 网络出版日期: 2023-01-20
- 刊出日期: 2023-01-14

20 kW monolithic fiber amplifier directly pumped by LDs

Xi Xiaoming^{1, 2
,},
Yang Baolai^{1, 2},
Zhang Hanwei^{1, 2},
Pan Zhiyong^{1, 2},
Huang Liangjin^{1, 2},
Wang Peng^{1, 2},
Yang Huan^{1, 2},
Shi Chen^{1, 2},
Yan Zhiping^{1, 2},
Chen Zilun^{1, 2},
Wang Xiaolin^{1, 2
, ,},
Han Kai^{1, 2},
Wang Zefeng^{1, 2
, ,},
Zhou Pu^{1
, ,},
Xu Xiaojun^{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:
高功率光纤激光器具有高效率、小体积、低成本、抗回光能力强等突出优点，在工业加工等应用领域中具有明显的竞争优势。近期，国防科技大学基于光纤耦合半导体激光器（LD）直接泵浦的主振荡功率放大器（MOPA）实现了单纤20.27 kW的功率输出。放大器采用纯后向泵浦方案，中心波长1080 nm，光光效率达到84.8%，拉曼散射抑制比大于50 dB。通过优化光纤和器件的设计，可进一步提升激光器的功率和光束质量。
- 光纤激光器 /
- 光纤放大器 /
- 半导体激光器 /
- 后向泵浦
Abstract:
Thanks to the advantages of compact, inexpensive and high conversion efficiency, high power fiber lasers are highly desired in industry applications. Recently, an all-fiber high power fiber amplifier directly pumped by laser diodes (LDs) was experimentally established. A maximum power of 20.27 kW was achieved with the optical-to-optical efficiency of 84.8%, central wavelength of 1080 nm, and Raman-suppression ratio of >50 dB. We believe that the brightness and the output power can be further improved by optimizing the design of the Yb-doped fiber and devices.
- fiber laser /
- fiber amplifier /
- laser diode /
- backward pumping

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图 1 (a)激光器结构示意图；(b)输出功率；(c)激光光谱

Figure 1. (a) Schematic of the experimental setup; (b) output power; (c) output spectra

下载: 全尺寸图片幻灯片

参考文献(7)

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