Szczegóły publikacji
Opis bibliograficzny
Multi-ring-core $Tm^{3+}$ doped LMA optical fiber for ASE emission - drawing-induced evolution of the refractive-index profile / Piotr Miluski, Marcin Kochanowicz, Marek ŁODZIŃSKI, Krzysztof Markowski, Agata Baranowska, Jacek Żmojda, Wojciech A. Pisarski, Joanna Pisarska, Marta Kuwik, Dominik Dorosz, Jan Dorosz // Optical Materials ; ISSN 0925-3467 . — 2026 — vol. 177 art. no. 118186, s. 1–9. — Bibliogr. s. 8–9, Abstr. — Publikacja dostępna online od: 2026-05-15. — D. Dorosz - afiliacja: Institute of Chemistry, University of Silesia, Katowice, Poland
Autorzy (11)
- Miluski Piotr
- Kochanowicz Marcin
- AGHŁodziński Marek
- Markowski Krzysztof
- Baranowska Agata
- Żmojda Jacek
- Pisarski Wojciech A.
- Pisarska Joanna
- Kuwik Marta
- Dorosz Dominik Jacek
- Dorosz Jan
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 169531 |
|---|---|
| Data dodania do BaDAP | 2026-09-21 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.optmat.2026.118186 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Optical Materials |
Abstract
A novel optical fiber design featuring a multi-ring core refractive index profile co-doped with Tm3+ is presented. The fiber was fabricated using the MCVD-CDT technique, enabling precise control of the spatial distribution of dopants and refractive index. Unlike conventional fibers with homogeneous cores, the proposed multi-ring architecture allows intentional engineering of modal and emission properties, representing a key novelty of this work. Numerical analysis confirmed weakly guiding conditions and few-mode guidance with a low numerical aperture (NA = 0.132) for a 48/250 mu m core/cladding geometry. The evolution of the multi-ring structure during fiber drawing is also discussed basis of the measured refractive-index profiles. The measured maximum concentrations of active and modifier oxides in the optical fiber preform are 0.2 mol% Tm2O3, 3.22 mol% Al2O3, and 0.75 mol% P2O5. Forward ASE behavior in the main emission band was confirmed by the simultaneous increase of the measured forward ASE power and spectral narrowing with increasing pump power, with the 3 m fiber providing the highest forward ASE output of 5.73 mW and a narrowed spectrum of 79 nm under the investigated conditions. The proposed fiber architecture demonstrates new opportunities for spectral (1.7-2.1 mu m) and modal engineering of fiber-based light sources operating in the eye-safe wavelength region.
