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TitleTowards power scaling of 2.8  μm fiber lasers.
Publication TypeJournal Article
Year of Publication2018
AuthorsAydin, Yigit Ozan, Vincent Fortin, Réal Vallée, and Martin Bernier
JournalOpt Lett
Date Published2018 Sep 15

We report the demonstration of a 2824 nm passively cooled erbium-doped fluoride fiber laser delivering a record average output power of 41.6 W in continuous-wave operation. The splice-less cavity is based on intra-core fiber Bragg gratings written directly in the active erbium-doped fluoride fiber, which is bidirectionally pumped at 980 nm to reduce heat load. To the best of our knowledge, this result is the highest average output power achieved with a mid-infrared fiber laser. The long-term performance of different protective endcaps is also investigated at high-power operation.

Alternate JournalOpt Lett
PubMed ID30211911