{"title":"5.58 kW Narrow-Linewidth Fiber Laser Based on House-Made Confined-Doped Fiber","authors":"Yisha Chen;Pengfei Ma;Tianfu Yao;Wei Liu;Zhiyong Pan;Huan Yang;Zefeng Wang;Pu Zhou;Jinbao Chen","doi":"10.1109/JLT.2024.3486060","DOIUrl":null,"url":null,"abstract":"In the contribution, a 5.58 kW monochromatic narrow linewidth fiber laser centered at 1080 nm realized by combining house-made confined doped fiber and bidirectional pump scheme has been presented. At the maximum power of 5.58 kW, the beam quality factor M<sup>2</sup> is ∼1.5. Experimental results have revealed that 90% confined doping is competent to increase TMI threshold by 20% and fit well with numerical calculation, which proves confined doping has the potential for further power scaling of narrow linewidth fiber laser by TMI mitigation, and experimental results indicate that confined doping can also be regarded as a reference for the design and optimization of high-power narrow linewidth near-diffraction-limited fiber lasers.","PeriodicalId":16144,"journal":{"name":"Journal of Lightwave Technology","volume":"43 3","pages":"1381-1386"},"PeriodicalIF":4.1000,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Lightwave Technology","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10734162/","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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Abstract
In the contribution, a 5.58 kW monochromatic narrow linewidth fiber laser centered at 1080 nm realized by combining house-made confined doped fiber and bidirectional pump scheme has been presented. At the maximum power of 5.58 kW, the beam quality factor M2 is ∼1.5. Experimental results have revealed that 90% confined doping is competent to increase TMI threshold by 20% and fit well with numerical calculation, which proves confined doping has the potential for further power scaling of narrow linewidth fiber laser by TMI mitigation, and experimental results indicate that confined doping can also be regarded as a reference for the design and optimization of high-power narrow linewidth near-diffraction-limited fiber lasers.
期刊介绍：
The Journal of Lightwave Technology is comprised of original contributions, both regular papers and letters, covering work in all aspects of optical guided-wave science, technology, and engineering. Manuscripts are solicited which report original theoretical and/or experimental results which advance the technological base of guided-wave technology. Tutorial and review papers are by invitation only. Topics of interest include the following: fiber and cable technologies, active and passive guided-wave componentry (light sources, detectors, repeaters, switches, fiber sensors, etc.); integrated optics and optoelectronics; and systems, subsystems, new applications and unique field trials. System oriented manuscripts should be concerned with systems which perform a function not previously available, out-perform previously established systems, or represent enhancements in the state of the art in general.
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