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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
Volume43
Issue18
Pagination4542-4545
Date Published2018 Sep 15
ISSN1539-4794
Abstract

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