Nanocrystalline ceramic phosphors for high-power lasers operating at 2μm

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F19%3A00519178" target="_blank" >RIV/67985882:_____/19:00519178 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/ICTON.2019.8839995" target="_blank" >http://dx.doi.org/10.1109/ICTON.2019.8839995</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICTON.2019.8839995" target="_blank" >10.1109/ICTON.2019.8839995</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanocrystalline ceramic phosphors for high-power lasers operating at 2μm

Popis výsledku v původním jazyce

Rare-earth (RE) doped silica glass optical fibers became a hearth of modern fiber-lasers. Such lasers are fully competitive with conventional solid-state lasers because of their high brightness, high quality beam, high conversion efficiency, good thermal management, tunability, compactness, size and even flexibility. However, a low solubility of RE inside a silica matrix and a high phonon energy of silica glass strongly reduce the luminescence efficiency of incorporated RE elements. Nanoparticle doping represents a powerful method that can eliminate these disadvantages.In this contribution we present an effect of the processing temperature on the luminescence properties of nanocrystalline (Eu0.05Y0.95)2Ti2O7 and (Ho0.05Y0.95)2Ti2O7 phosphors. The luminescence properties of (Ho0.05Y0.95)2Ti2O7 improved with increasing nanocrystal size. The nanocrystals of (Ho0.05Y0.95)2Ti2O7 were successfully incorporated into optical fiber with the outer diameter 125 μm and the core diameter 8 μm. The fiber's numerical aperture was 0.13 and the background losses at 850 nm were 0.38 dB•m-1.The lifetime of the 5I7 →5I8 transition at 1.92 μm was 0.72 ± 0.01 ms. The results bring the fundamental information about the effect of the nanocrystal size their luminescence properties of (RE0.05Y0.95)2Ti2O7 and their possible application as phosphors in active optical fibers

Název v anglickém jazyce

Nanocrystalline ceramic phosphors for high-power lasers operating at 2μm

Popis výsledku anglicky

Rare-earth (RE) doped silica glass optical fibers became a hearth of modern fiber-lasers. Such lasers are fully competitive with conventional solid-state lasers because of their high brightness, high quality beam, high conversion efficiency, good thermal management, tunability, compactness, size and even flexibility. However, a low solubility of RE inside a silica matrix and a high phonon energy of silica glass strongly reduce the luminescence efficiency of incorporated RE elements. Nanoparticle doping represents a powerful method that can eliminate these disadvantages.In this contribution we present an effect of the processing temperature on the luminescence properties of nanocrystalline (Eu0.05Y0.95)2Ti2O7 and (Ho0.05Y0.95)2Ti2O7 phosphors. The luminescence properties of (Ho0.05Y0.95)2Ti2O7 improved with increasing nanocrystal size. The nanocrystals of (Ho0.05Y0.95)2Ti2O7 were successfully incorporated into optical fiber with the outer diameter 125 μm and the core diameter 8 μm. The fiber's numerical aperture was 0.13 and the background losses at 850 nm were 0.38 dB•m-1.The lifetime of the 5I7 →5I8 transition at 1.92 μm was 0.72 ± 0.01 ms. The results bring the fundamental information about the effect of the nanocrystal size their luminescence properties of (RE0.05Y0.95)2Ti2O7 and their possible application as phosphors in active optical fibers

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GA17-20049S" target="_blank" >GA17-20049S: Nová optická vlákna a jejich spektroskopie pro vláknové lasery pracující ve spektrální oblasti za 2 μm</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

21st International Conference on Transparent Optical Networks, ICTON 2019

ISBN

978-1-7281-2779-8

ISSN

2162-7339

e-ISSN

2161-2064

Počet stran výsledku

4

Strana od-do

Th.D6.1

Název nakladatele

IEEE

Místo vydání

Varšava

Místo konání akce

Angers

Datum konání akce

9. 7. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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