Holmium-doped silica fibers combining high doping and high efficiency

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F25%3A00648154" target="_blank" >RIV/67985882:_____/25:00648154 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/25:00383233
Result on the web
<a href="https://doi.org/10.1364/OE.554762" target="_blank" >https://doi.org/10.1364/OE.554762</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.554762" target="_blank" >10.1364/OE.554762</a>

Result language
angličtina
Original language name
Holmium-doped silica fibers combining high doping and high efficiency
Original language description
We present a 2.1 mu m holmium-doped fiber laser, core pumped by a 1.94 mu m thulium-doped fiber laser. The laser is based on an in-house drawn, highly holmium-doped silica fiber (3850 mol ppm). We achieved a high output power up to 22.5 W and at the same time high slope efficiency of 81% with respect to absorbed pump power with an efficiency optimized resonator. We later optimized the resonator for output power and achieved a holmium core-pumped record output power of 35.4 W with 79% slope efficiency. We simulate a pedestal-cladding-pumped fiber with the same core composition, which can be used to further scale-up the output power, while maintaining high efficiency
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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