Yttrium aluminium garnet doped fiber lasers operating at 2 μm

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Yttrium aluminium garnet doped fiber lasers operating at 2 μm

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Yttrium aluminium garnet doped fiber lasers operating at 2 μm

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GA23-05507S" target="_blank" >GA23-05507S: Pokročilé anorganické nanokompozity pro distribuované senzory škodlivého záření</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of ICTON 2024

ISBN

979-835037730-9

ISSN

2162-7339

e-ISSN

—

Počet stran výsledku

4

Strana od-do

10647566

Název nakladatele

IEEE

Místo vydání

New York

Místo konání akce

Bari

Datum konání akce

14. 7. 2024

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

001315628100138