75 W 40% efficiency single-mode all-fiber erbium-doped laser cladding pumped at 976 nm
- 24 June 2013
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 38 (13), 2230-2232
- https://doi.org/10.1364/ol.38.002230
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.Keywords
Funding Information
- Russian Foundation for Basic Research (RFBR) (12-08-33101)
- French Embassy in Moscow
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