Monolithic highly efficient 272 W nested-ring structured-core thulium fiber laser at 1940 nm.

IF 3.3 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-09-15 DOI:10.1364/OL.566019

Richard Švejkar, Martin P Buckthorpe, Bára Švejkarová, Peter C Shardlow, W Andrew Clarkson

引用次数: 0

Abstract

A novel, to the best of our knowledge, thulium-doped silica fiber with a non-uniform core doping profile has been utilized to demonstrate a high-power monolithic laser oscillator system. The fiber laser achieved a continuous-wave (CW) output power of 272 W at 1940 nm with slope efficiencies of 68% and 71% with respect to launched and absorbed pump power, respectively. This novel Tm fiber design enabled the generation of the highest reported output power from a single-mode, small core ($<$15 µm diameter) non-pedestal fiber. Moreover, the slope efficiency achieved is the maximum reported to date for a single-mode thulium fiber laser operating at >100 W output power level.

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1940nm单片高效272w嵌套环结构芯铥光纤激光器。

一种新颖的，据我们所知，具有非均匀芯掺杂轮廓的掺铥硅光纤已被用于演示高功率单片激光振荡器系统。光纤激光器在1940 nm处的连续波输出功率为272 W，发射泵浦功率和吸收泵浦功率的斜率效率分别为68%和71%。这种新颖的Tm光纤设计能够从单模、小芯（$100 W输出功率水平）产生最高的输出功率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.