Chu Qiuhui, Liao Ruoyu, Shu Qiang, Tao Rumao, Yan Donglin, Liang Fengyun, Lin Honghuan, Wen Jing, W. Jianjun, Jing Feng
{"title":"22 GHz linewidth all-fiber laser achieved 2.62 kW near diffraction-limited output","authors":"Chu Qiuhui, Liao Ruoyu, Shu Qiang, Tao Rumao, Yan Donglin, Liang Fengyun, Lin Honghuan, Wen Jing, W. Jianjun, Jing Feng","doi":"10.11884/HPLPB202032.200143","DOIUrl":null,"url":null,"abstract":"This paper demonstrates an all-fiber high-power Yb-doped 1064 nm fiber laser based on master oscillator power amplifier structure. The record output power up to 2625 W was achieved, along with a slope efficiency of 76%. The beam quality factor is Mx2=1.273, My2=1.255, and full width at half maximum is 21.7 GHz at maximum power level. The fiber laser has the highest output power of all-fiber lasers with 22 GHz linewidth.","PeriodicalId":39871,"journal":{"name":"强激光与粒子束","volume":"32 1","pages":"101001-1-101001-2"},"PeriodicalIF":0.0000,"publicationDate":"2020-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"强激光与粒子束","FirstCategoryId":"1089","ListUrlMain":"https://doi.org/10.11884/HPLPB202032.200143","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0
Abstract
This paper demonstrates an all-fiber high-power Yb-doped 1064 nm fiber laser based on master oscillator power amplifier structure. The record output power up to 2625 W was achieved, along with a slope efficiency of 76%. The beam quality factor is Mx2=1.273, My2=1.255, and full width at half maximum is 21.7 GHz at maximum power level. The fiber laser has the highest output power of all-fiber lasers with 22 GHz linewidth.