Article Dans Une Revue Journal of the American Ceramic Society Année : 2025

Unveiling the advances and challenges in the development of Er3+-doped tellurite fiber with embedded Ag nanoparticles

Khaldoon Nasser
Juho Korri
Mikko Närhi
Regina Gumenyuk
Abdelhak Othmani
Johann Troles
Laeticia Petit

Résumé

Er3+‐doped fibers are widely used as 1.55 µm broadband optical amplifiers. Tellurite glasses are particularly suitable as a gain medium due to their lower phonon energy and better rare‐earth solubility compared to silica glass. Various strategies, such as reducing the OH content and co‐doping with silver nanoparticles (Ag NPs), are attempted to improve the spectroscopic properties. However, maintaining the glass drawability into fibers when developing glasses with improved spectroscopic properties remains a significant challenge. Indeed, it is confirmed that NH4HF2 can be added into the tellurite glass batch prior to the melting to reduce OH− content. However, the presence of remaining F in the glass is demonstrated to have a detrimental impact on the glass thermal properties preventing the drawing of this glass into fiber. The successful drawing of a single‐index optical fiber from a tellurite glass preform heavily doped with Er3+ ions is reported for the first time. The Ag NPs are grown in the fiber using a thermal treatment at the glass transition temperature. The presence of the NPs is confirmed using a TEM and from the spectroscopic properties. The interaction between Er3+ ions and the Ag species offers potential for modifying the luminescence properties of the fiber.

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Matériaux
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jeudi 15 janvier 2026
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jeudi 15 janvier 2026
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Dates et versions

hal-04919588 , version 1 (14-02-2025)

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Iuliia Kraskowski, Khaldoon Nasser, Juho Korri, Mikko Närhi, Regina Gumenyuk, et al.. Unveiling the advances and challenges in the development of Er3+-doped tellurite fiber with embedded Ag nanoparticles. Journal of the American Ceramic Society, 2025, pp.e20385. ⟨10.1111/jace.20385⟩. ⟨hal-04919588⟩
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