The Effect of thermal and mechanical processing on the fluorescence lifetime of Yb-doped silica preforms and fibers for use in nanostructured-core fiber lasers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F22%3A00560102" target="_blank" >RIV/67985882:_____/22:00560102 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1117/12.2608684" target="_blank" >https://doi.org/10.1117/12.2608684</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2608684" target="_blank" >10.1117/12.2608684</a>
Alternative languages
Result language
angličtina
Original language name
The Effect of thermal and mechanical processing on the fluorescence lifetime of Yb-doped silica preforms and fibers for use in nanostructured-core fiber lasers
Original language description
In this paper, we investigate the influence of various nanostructured-core fiber fabrication processes, such as preform elongation or fiber drawing, on the fluorescence lifetime of Yb3+ ions. The optical fiber preform was prepared using Modified Chemical Vapor Deposition (MCVD) method combined with Al2O3 nanoparticle doping. The optical fiber preform was subjected to various processing treatments involving heat and mechanical stresses, i.e. preform elongation and fiber drawing, and the fluorescence lifetime was measured in all stages of fiber fabrication, i.e. original preform, elongated preform (cane), fiber and overcladded fiber. It was found that the time-resolved photoluminescence properties of Yb3+ ions in silica glass are strongly dependent on the processing of the material. The fluorescence lifetime of the F-2(5/ 2) level of Yb3+ ions decreased with the heat and mechanical treatment, which was explained by the break-up of Al2O3 nanoparticles, diffusion of dopants and changes in the Yb3+ phonon environment as well as clustering of the Yb3+ ions. The fiber drawing exhibited a stronger effect compared to preform elongation which was ascribed to the high rate of cooling and mechanical stresses during the drawing process. In general, the heat and mechanical processing of Yb-doped optical fiber preforms leads to a deterioration of time-resolved photoluminescence properties.
Czech name
—
Czech description
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Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
<a href="/en/project/GF21-45431L" target="_blank" >GF21-45431L: Novel nanostructured optical fibers for fiber lasers operating at dual wavelengths</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
FIBER LASERS XIX: TECHNOLOGY AND SYSTEMS
ISBN
978-1-5106-4833-3
ISSN
0277-786X
e-ISSN
1996-756X
Number of pages
6
Pages from-to
"Roč. 11981 (2022)"
Publisher name
SPIE
Place of publication
Bellingham
Event location
San Francisco and Virtual
Event date
Jan 22, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000831625300002