Nanocrystalline ZrO2-doped active optical fibers for fiber lasers operating at 2 mu m

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922346" target="_blank" >RIV/60461373:22310/21:43922346 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11773/2589127/Nanocrystalline-ZrO2-doped-active-optical-fibers-for-fiber-lasers-operating/10.1117/12.2589127.short?SSO=1" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/11773/2589127/Nanocrystalline-ZrO2-doped-active-optical-fibers-for-fiber-lasers-operating/10.1117/12.2589127.short?SSO=1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2589127" target="_blank" >10.1117/12.2589127</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanocrystalline ZrO2-doped active optical fibers for fiber lasers operating at 2 mu m

Popis výsledku v původním jazyce

In this work, phase-separated fibers of the system SiO2-ZrO2 doped by thulium and holmium ions were prepared by modified solution-doping method combined with MCVD. The ZrO2 concentration in both fibers was approx. 3 mol. %. The rare-earth ion concentrations were 270 and 740 ppm, respectively. The presence of ZrO2-based nanoparticles in the optical fiber preforms was confirmed by scanning electron microscope (SEM). The background losses of the fibers were in the range of 0.1 – 0.6 dB/m. The fibers exhibited strong emission in the near-infrared region thanks to 4f-4f transitions of rare-earth ions. The photoluminescence decay of both fibers exhibited double exponential character, most likely due to the incorporation of rare-earth ions in different optically active sites, i.e. ZrO2-based nanoparticles and grain boundaries or amorphous silica matrix. The fibers were tested as active mediums in fiber laser setup. The thulium-doped fiber exhibited threshold for laser operation of 233 mW and slope efficiency of 72.7 %. The holmium doped fiber failed to manifest lasing properties. An improved laser performance may be achieved by higher proportion of rare-earth ions incorporating in the favorable environment of the nanoparticles.

Název v anglickém jazyce

Nanocrystalline ZrO2-doped active optical fibers for fiber lasers operating at 2 mu m

Popis výsledku anglicky

In this work, phase-separated fibers of the system SiO2-ZrO2 doped by thulium and holmium ions were prepared by modified solution-doping method combined with MCVD. The ZrO2 concentration in both fibers was approx. 3 mol. %. The rare-earth ion concentrations were 270 and 740 ppm, respectively. The presence of ZrO2-based nanoparticles in the optical fiber preforms was confirmed by scanning electron microscope (SEM). The background losses of the fibers were in the range of 0.1 – 0.6 dB/m. The fibers exhibited strong emission in the near-infrared region thanks to 4f-4f transitions of rare-earth ions. The photoluminescence decay of both fibers exhibited double exponential character, most likely due to the incorporation of rare-earth ions in different optically active sites, i.e. ZrO2-based nanoparticles and grain boundaries or amorphous silica matrix. The fibers were tested as active mediums in fiber laser setup. The thulium-doped fiber exhibited threshold for laser operation of 233 mW and slope efficiency of 72.7 %. The holmium doped fiber failed to manifest lasing properties. An improved laser performance may be achieved by higher proportion of rare-earth ions incorporating in the favorable environment of the nanoparticles.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of SPIE

ISBN

—

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

6

Strana od-do

1177317

Název nakladatele

SPIE- The International Society for Optical Engineering

Místo vydání

Denvers,MA

Místo konání akce

Virtual

Datum konání akce

19. 4. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000696183900027