915 nm pumped 1018 nm Yb-doped all-fiber high power fiber laser system

Date
2019
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Source Title
2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
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Publisher
Institute of Electrical and Electronics Engineers Inc.
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Language
English
Type
Conference Paper
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Abstract

Fibers lasers have attracted great attention in the last decades and the power scaling has reached tens of kW levels. Especially with the tandem pump configuration, pumping the active medium with a pump laser light instead of a diode laser, has made a breakthrough and so many research has been conducted about 1018 nm fiber laser systems [1]. Decreasing the quantum defect, the slope efficiency could be increased up to 90 % levels; on the other hand, due to the emission cross section of the Ytterbium (Yb), to operate the laser in the 1018 nm wavelength region is very challenging because of the presence of the ASE about the 1030 nm region. However, in the literature by using 976 nm pump diodes multi-hundred watts level 1018 nm fiber lasers could be demonstrated [2, 3].

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Keywords
Laser excitation, Fiber lasers, Pump lasers, Semiconductor lasers, Power lasers, Optical fibers
Citation
Published Version (Please cite this version)