Influence of TiO2 concentration on near-infrared luminescence of Er3+ ions in barium gallo-germanate glasses

Karolina Kowalska; Marta Kuwik; Joanna Pisarska; Magdalena Leśniak; Dominik Dorosz; Marcin Kochanowicz; Jacek Żmojda; Jan Dorosz; Wojciech A. Pisarski

Journal of Materials Research and Technology (Nov 2022)

Influence of TiO2 concentration on near-infrared luminescence of Er3+ ions in barium gallo-germanate glasses

Karolina Kowalska,
Marta Kuwik,
Joanna Pisarska,
Magdalena Leśniak,
Dominik Dorosz,
Marcin Kochanowicz,
Jacek Żmojda,
Jan Dorosz,
Wojciech A. Pisarski

Affiliations

Karolina Kowalska: Institute of Chemistry, University of Silesia, Szkolna 9 Street, 40-007 Katowice, Poland
Marta Kuwik: Institute of Chemistry, University of Silesia, Szkolna 9 Street, 40-007 Katowice, Poland
Joanna Pisarska: Institute of Chemistry, University of Silesia, Szkolna 9 Street, 40-007 Katowice, Poland
Magdalena Leśniak: AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland
Dominik Dorosz: AGH University of Science and Technology, 30 Mickiewicza Av., 30-059 Krakow, Poland
Marcin Kochanowicz: Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland
Jacek Żmojda: Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland
Jan Dorosz: Bialystok University of Technology, Wiejska 45D Street, 15-351 Bialystok, Poland
Wojciech A. Pisarski: Institute of Chemistry, University of Silesia, Szkolna 9 Street, 40-007 Katowice, Poland; Corresponding author. University of Silesia, Institute of Chemistry, Katowice, Poland.

Journal volume & issue: Vol. 21
pp. 4761 – 4772

Abstract

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Erbium (Er)-doped barium gallo-germanate (BGG) glasses modified by TiO2 have been investigated for near-infrared luminescence applications. Luminescence at 1.5 μm associated to 4I13/2 → 4I15/2 transition of Er3+ ions has been examined in function of TiO2 concentration. Several spectroscopic and near-infrared (NIR) laser parameters for Er3+ such as stimulated emission cross-section, luminescence bandwidth and lifetime, quantum efficiency, gain bandwidth and figure of merit were determined based on experiments and theoretical calculations using the Judd-Ofelt framework. Our systematic investigations indicate that Er-doped glass with molar ratio GeO2:TiO2 = 1:2 shows excellent luminescence properties and could be successfully applied to near-infrared broadband optical amplifiers.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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