Presentation
11 March 2020 47-W 1726-nm operation of a thulium fiber laser pumped in-band by an erbium-only fiber laser (Conference Presentation)
Author Affiliations +
Abstract
A route to high power continuous-wave generation around 1.7 µm has been explored using an Er-only doped LMA fiber laser for high brightness core pumping of a thulium-doped fiber laser (TDFL). The maximum output power of 47 W with a slope efficiency of 80% was achieved at 1726 nm which, to the author’s best knowledge, is the highest recorded power in this wavelength region from a TDFL. The motivation for an Er-only pump source is scalability; these results show that this configuration has significant potential for further power scaling towards hundred-watt class systems at 1.7 µm and beyond.
Conference Presentation
© (2020) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mark D. Burns, Peter C. Shardlow, Pranabesh Barua, Thomas L. Jefferson-Brain, Jayanta K. Sahu, and William A. Clarkson "47-W 1726-nm operation of a thulium fiber laser pumped in-band by an erbium-only fiber laser (Conference Presentation)", Proc. SPIE 11260, Fiber Lasers XVII: Technology and Systems, 112600G (11 March 2020); https://doi.org/10.1117/12.2544933
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KEYWORDS
Fiber lasers

YAG lasers

Absorption

Ytterbium

High power lasers

Laser development

Laser sources

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