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100-W-level single-mode ytterbium-free erbium fiber laser
- 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.
- Subjects :
- Ytterbium
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]
Materials science
business.industry
Slope efficiency
Single-mode optical fiber
chemistry.chemical_element
02 engineering and technology
021001 nanoscience & nanotechnology
Laser
01 natural sciences
Atomic and Molecular Physics, and Optics
law.invention
Numerical aperture
010309 optics
Erbium
Optics
chemistry
law
Fiber laser
0103 physical sciences
Fiber
0210 nano-technology
business
ComputingMilieux_MISCELLANEOUS
Subjects
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⟩