| Autor: |
Karolina Kowalska, Marta Kuwik, Joanna Pisarska, Magdalena Leśniak, Dominik Dorosz, Marcin Kochanowicz, Jacek Żmojda, Jan Dorosz, Wojciech A. Pisarski |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Journal of Materials Research and Technology, Vol 21, Iss , Pp 4761-4772 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2022.11.081 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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