Single Trench Fiber-Enabled High-Power Fiber Laser

被引：1

作者：

An, Yi ^{[1
]}

Li, Fengchang ^{[2
]}

Yang, Huan ^{[2
,3
]}

Chen, Xiao ^{[2
]}

Huang, Liangjin ^{[2
,3
]}

Yan, Zhiping ^{[2
,3
]}

Jiang, Min ^{[1
]}

Yang, Baolai ^{[2
,3
]}

Wang, Peng ^{[2
,3
]}

Pan, Zhiyong ^{[2
,3
]}

Jiang, Zongfu ^{[2
,3
]}

Zhou, Pu ^{[2
]}

机构：

[1] Natl Univ Def Technol, Test Ctr, Xian 710106, Peoples R China

[2] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China

[3] Natl Univ Def Technol, Nanhu Laser Lab, Changsha 410073, Peoples R China

来源：

PHOTONICS | 2024年 / 11卷 / 07期

基金：

中国国家自然科学基金;

关键词：

rare-earth-doped fiber; single trench fiber; high-power fiber lasers; AREA; SUPPRESSION; SCATTERING; AMPLIFIER; CORE;

D O I：

10.3390/photonics11070615

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

As a novel design of large-mode-area fiber, the single trench fiber (STF) providing high higher-order-mode suppression with a large mode area for the fundamental mode shows potential for high-power and high-brightness applications. However, the output power of STFs has remained relatively low over the past decade. In this paper, we first conducted a design process for STFs and determined the optimal ratio of the fiber structural parameters. Following this ratio, we fabricated an ytterbium-doped STF and demonstrated an all-fiberized fiber amplifier. The system achieved an output power of 2.5 kW with an M2 factor of 1.396. To the best of our knowledge, the power of the STF in this study is approximately three times higher than the previous single-mode power record.

引用

页数：10

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