Szczegóły publikacji
Opis bibliograficzny
Rare-earth doped titanate-germanate glasses emitting near-IR radiation for optical fiber technology / Karolina Kowalska, Joanna Pisarska, Tomasz Ragiń, Jakub Markiewicz, Marcin Kochanowicz, Piotr Miluski, Jan Dorosz, Dominik DOROSZ, Wojciech A. Pisarski // Journal of Alloys and Compounds ; ISSN 0925-8388 . — 2025 — vol. 1010 art. no. 177965, s. 1–10. — Bibliogr. s. 8–10, Abstr. — Publikacja dostępna online od: 2024-12-05
Autorzy (9)
- Kowalska Karolina
- Pisarska Joanna
- Ragiń Tomasz
- Markiewicz Jakub
- Kochanowicz Marcin
- Miluski Piotr
- Dorosz Jan
- AGHDorosz Dominik Jacek
- Pisarski Wojciech A.
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 167437 |
|---|---|
| Data dodania do BaDAP | 2026-05-06 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jallcom.2024.177965 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Alloys and Compounds |
Abstract
The increasing popularity of new efficient laser sources in recent years can be attributed to their application in atmosphere pollution monitoring, medical surgery, or eye-safe laser radar. In response to this need, this work introduces active titanate-germanate materials (glass and glass optical fibers) operated in the near-IR range. As demonstrated in the first part of this article, X-ray diffraction analysis confirmed the fully amorphous nature of the received samples. The glasses based on the TiO2-GeO2-BaO-Ga2O3 (TGBG) system with molar ratio TiO2: GeO2 = 2:1 (40 %mol TiO2) doped with Er3 + , Tm3+ ions and co-doped with pairs Yb3+/Er3+, Yb3+/Tm3+ ions were investigated using absorption and luminescence spectroscopy. Special attention has been paid to the analysis of the near-infrared luminescence at 1.5 mu m associated with the 4 I 13/2 -> 4 I 15/2 transition of Er3+ ions and 1.8 mu m associated with 3 F 4 -> 3 H 6 transition of Tm3+ ions. For further characterization, the broadband emission transitions for co-doped glass samples were measured under the excitation of Yb3+. Based on the luminescence decays from the 2F5/2 state of Yb3+ ions, it was proven that the calculated energy transfer of the obtained glass samples reached eta = 76 % (Yb3+/Er3+) and eta = 85 % (Yb3+/Tm3+).Moreover, active optical fibers were prepared from precursor glasses. To the best of our knowledge, this article has been extended for the first time by analyzing the effect of fiber length on their near-infrared luminescence profiles of titanate-germanate fibers. Notably, the length of the glass fiber significantly influenced on the peak positions and linewidth values. This innovative approach opens avenues for advancing the field of modern photonics, offering enhanced near-infrared luminescence properties and adaptability for optical fiber technology.
