The effect of fiber fabrication process on the photoluminescence properties of RE-doped optical fiber preforms and fibers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F22%3A00560328" target="_blank" >RIV/67985882:_____/22:00560328 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1117/12.2620487" target="_blank" >https://doi.org/10.1117/12.2620487</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2620487" target="_blank" >10.1117/12.2620487</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of fiber fabrication process on the photoluminescence properties of RE-doped optical fiber preforms and fibers

Popis výsledku v původním jazyce

Holmium- doped aluminosilicate fibers are frequently used in holmium-doped fiber lasers (HDFL) thanks to their strong emission at 2 mu m. Fluorescence lifetime is one of the most important parameters to determine the suitability of holmiumdoped optical fibers for use in fiber lasers. One of the potential mechanisms for the shortening of fluorescence lifetime is the diffusion of RE ions and Al2O3 at high temperatures during the fiber preparation process. We have prepared a Hodoped aluminosilicate optical fiber preform using MCVD combined with nanoparticle doping. The prepared preform was subjected to various fabrication processes such as preform elongation, fiber drawing or additional heat treatment, the fluorescence lifetime was measured in all stages of the experiment and its dependency on the fabrication process was discussed. The original preform exhibited a long fluorescence lifetime of 1.433 ms. Gradual application of fiber fabrication processes such as preform elongation or fiber drawing resulted in a decline of fluorescence lifetime down to 1.174 ms in the case of overcladded optical fiber. The decrease of fluorescence lifetime was ascribed to the diffusion of dopants and the changes in the Ho3+ ion environment, which increased the rate of multiphonon relaxation, as well as clustering of holmium ions, which increased concentration quenching.

Název v anglickém jazyce

The effect of fiber fabrication process on the photoluminescence properties of RE-doped optical fiber preforms and fibers

Popis výsledku anglicky

Holmium- doped aluminosilicate fibers are frequently used in holmium-doped fiber lasers (HDFL) thanks to their strong emission at 2 mu m. Fluorescence lifetime is one of the most important parameters to determine the suitability of holmiumdoped optical fibers for use in fiber lasers. One of the potential mechanisms for the shortening of fluorescence lifetime is the diffusion of RE ions and Al2O3 at high temperatures during the fiber preparation process. We have prepared a Hodoped aluminosilicate optical fiber preform using MCVD combined with nanoparticle doping. The prepared preform was subjected to various fabrication processes such as preform elongation, fiber drawing or additional heat treatment, the fluorescence lifetime was measured in all stages of the experiment and its dependency on the fabrication process was discussed. The original preform exhibited a long fluorescence lifetime of 1.433 ms. Gradual application of fiber fabrication processes such as preform elongation or fiber drawing resulted in a decline of fluorescence lifetime down to 1.174 ms in the case of overcladded optical fiber. The decrease of fluorescence lifetime was ascribed to the diffusion of dopants and the changes in the Ho3+ ion environment, which increased the rate of multiphonon relaxation, as well as clustering of holmium ions, which increased concentration quenching.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GF21-45431L" target="_blank" >GF21-45431L: Nová nanostrukturovaná optická vlákna pro vláknové lasery pracující na dvou vlnových délkách</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

MICRO-STRUCTURED AND SPECIALTY OPTICAL FIBRES VII

ISBN

978-1-5106-5156-2

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

7

Strana od-do

"Roč. 12140 (2022)"

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Virtual

Datum konání akce

3. 4. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000838075300004