Yttrium aluminium garnet doped fiber lasers operating at 2 μm

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F24%3A00603513" target="_blank" >RIV/67985882:_____/24:00603513 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore-ieee-org.ezproxy.techlib.cz/document/10647566" target="_blank" >https://ieeexplore-ieee-org.ezproxy.techlib.cz/document/10647566</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ICTON62926.2024.10647566" target="_blank" >10.1109/ICTON62926.2024.10647566</a>

Result language
angličtina
Original language name
Yttrium aluminium garnet doped fiber lasers operating at 2 μm
Original language description
are earth doped yttrium aluminium garnet represents a key photonic material for a construction of solid state and fiber lasers. We prepared active optical fibers by incorporating Ho-doped yttrium aluminium garnet nanocrystals into the porous silica frit. During frit sintering, the nanocrystals reacted with the host silica matrix to form the transparent yttrium aluminosilicate glass making the preform core. The maximum refractive index of preform was 1.463. The preform was drawn into the optical fiber with the standard outer diameter of 125 μ m and the core diameter of 16 μ m. The absorption coefficient for the electronic transition 5I7 →5I8 of Ho3+ ions localized at 1950 nm reached a value of 10.8 dB · m-1. The corresponding radiation lifetime followed the single-exponential decay curve providing the value of 0.750 ms. The fiber was successfully tested in the fiber laser set-up providing the laser threshold 0.374 W and slope efficiency of 55.39 %. Further modification of the chemical composition and processing parameters can improve the achieved laser properties and allows preparation of radioluminescent optical fibers for distributed sensors of harmful radiation
Czech name
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Czech description
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Project
<a href="/en/project/GA23-05507S" target="_blank" >GA23-05507S: Advanced inorganic nanocomposites for distributed sensors of harmful radiation</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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