Effect of doping concentration on the performance of 2.8 µm Er:CaF2 lasers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F25%3A00382987" target="_blank" >RIV/68407700:21340/25:00382987 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1364/OL.555586" target="_blank" >https://doi.org/10.1364/OL.555586</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OL.555586" target="_blank" >10.1364/OL.555586</a>

Result language
angličtina
Original language name
Effect of doping concentration on the performance of 2.8 µm Er:CaF2 lasers
Original language description
The effect of rare-earth doping on the spectroscopy and mid-infrared laser performance of Er3+:CaF2 crystals was investigated. An optimum doping level of 3–5 at.% was identified owing to ion clustering. Pumped by a high-brightness Yb-fiber laser at 976 nm, a continuous-wave 5 at.% Er3+:CaF2 laser generated 1.22 W at 2798 nm with a slope efficiency of 38.3% exceeding the Stokes limit, and the laser wavelength was continuously tunable across 2690–2830 nm (tuning range: 140 nm). The ratio of energy-transfer upconversion rates from 4I11/2 and 4I13/2 states was quantified relating to the energy recycling process.
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
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Continuities
S - Specificky vyzkum na vysokych skolach<br>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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