75 W 40% efficiency single-mode all-fiber erbium-doped laser cladding pumped at 976 nm

Abstract : Optimization of Yb-free Er-doped fiber for lasers and amplifiers cladding pumped at 976 nm was performed in this Letter. The single-mode fiber design includes an increased core diameter of 34 μm and properly chosen erbium and co-dopant concentrations. We demonstrate an all-fiber high power laser and power amplifier based on this fiber with the record slope efficiency of 40%. To the best of our knowledge, the achieved output power of 75 W is the highest power reported for such lasers.
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https://hal-unilim.archives-ouvertes.fr/hal-00925268
Contributeur : Raphael Jamier <>
Soumis le : mardi 7 janvier 2014 - 17:53:52
Dernière modification le : jeudi 26 juillet 2018 - 12:08:17

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V. L. Kotov, M.E. Likhachev, Mikhail M. Bubnov, O. I. Medvedkov, M.V. Yashkov, et al.. 75 W 40% efficiency single-mode all-fiber erbium-doped laser cladding pumped at 976 nm. Optics Letters, Optical Society of America, 2013, pp.2230. ⟨10.1364/OL.38.002230⟩. ⟨hal-00925268⟩

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