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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

<a href="/en/project/GA17-20049S" target="_blank" >GA17-20049S: Novel optical fibers and their spectroscopy for fiber lasers operating beyond 2 μm</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Article name in the collection

21st International Conference on Transparent Optical Networks, ICTON 2019

ISBN

978-1-7281-2779-8

ISSN

2162-7339

e-ISSN

2161-2064

Number of pages

4

Pages from-to

Th.D6.1

Publisher name

IEEE

Place of publication

Varšava

Event location

Angers

Event date

Jul 9, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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