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100-W-level single-mode ytterbium-free erbium fiber laser

Authors :
Catherine Veilleux
Samantha Pelletier-Ouellet
Younes Messaddeq
Maxime Lemieux-Tanguay
Louis-Charles Michaud
Pascal Paradis
Matthieu Bellec
Steeve Morency
Olivier Gilbert-Paquet
Nicolas Grégoire
Martin Bernier
Guillaume Bilodeau
Marie-Anne Lebel-Cormier
Centre d'Optique, Photonique et Laser
Université Laval [Québec] (ULaval)
Institut de Physique de Nice (INPHYNI)
Université Nice Sophia Antipolis (1965 - 2019) (UNS)
COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)
Centre d'Etudes Lasers Intenses et Applications (CELIA)
Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)
Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS)
COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)
Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB)
Source :
Optics Letters, Optics Letters, 2021, 46 (10), pp.2553. ⟨10.1364/OL.427291⟩, Optics Letters, Optical Society of America-OSA Publishing, 2021, 46 (10), pp.2553. ⟨10.1364/OL.427291⟩
Publication Year :
2021

Abstract

We report on an ytterbium-free, erbium-doped single-mode all-fiber laser reaching a record output power of 107 W at 1598 nm, with a slope efficiency of 38.6% according to the absorbed pump power at 981 nm. The erbium-doped gain fiber, co-doped with cerium, aluminum, and phosphorus, was fabricated in-house with adjusted doping concentrations to reduce erbium ions clustering, thereby increasing efficiency while keeping the numerical aperture low to ensure a single-mode laser operation. The addition of cerium co-dopant in the core glass of an erbium system is used for the first time, to the best of our knowledge, in order to adjust the fiber’s numerical aperture without increasing the erbium concentration. Numerical modeling, validated by the experimental results, demonstrates that adding aluminum and phosphorus at high concentration mitigates erbium ions clustering, with an estimated erbium paired ions of only 5.0% in the reported gain fiber.

Details

ISSN :
15394794 and 01469592
Volume :
46
Issue :
10
Database :
OpenAIRE
Journal :
Optics letters
Accession number :
edsair.doi.dedup.....674380641153fed9b52bf3977bb5c8fa
Full Text :
https://doi.org/10.1364/OL.427291⟩