F. Maes, Y. Aydin, T. Poulin, S. Bah, V. Fortin, R. Vallée, M. Bernier
{"title":"Suppressing fiber tip failure: On the road to 100 W-level 3-μm fiber lasers (Conference Presentation)","authors":"F. Maes, Y. Aydin, T. Poulin, S. Bah, V. Fortin, R. Vallée, M. Bernier","doi":"10.1117/12.2544504","DOIUrl":null,"url":null,"abstract":"We report on the use of OH diffusion barrier coatings to suppress fiber tip degradation in high-power 3 μm fiber lasers. To this extent, silicon nitride thin-films are sputtered on the endface of a 20 W erbium-doped fluoride fiber laser at 2.83 μm. By monitoring the temperature evolution of the output fiber tip over a 24 hour time period, we validate the effectiveness of silicon nitride thin films in mitigating fiber tip degradation. These results, along with previous demonstrations, underline the potential of 3 μm fiber lasers to reach 100 W of output power in the near future.","PeriodicalId":246609,"journal":{"name":"Fiber Lasers XVII: Technology and Systems","volume":"33 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fiber Lasers XVII: Technology and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1117/12.2544504","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We report on the use of OH diffusion barrier coatings to suppress fiber tip degradation in high-power 3 μm fiber lasers. To this extent, silicon nitride thin-films are sputtered on the endface of a 20 W erbium-doped fluoride fiber laser at 2.83 μm. By monitoring the temperature evolution of the output fiber tip over a 24 hour time period, we validate the effectiveness of silicon nitride thin films in mitigating fiber tip degradation. These results, along with previous demonstrations, underline the potential of 3 μm fiber lasers to reach 100 W of output power in the near future.