Pr3+-doped YPO4 nanocrystal embedded into an optical fiber.
Sci Rep
; 14(1): 7404, 2024 Mar 28.
Article
em En
| MEDLINE
| ID: mdl-38548783
ABSTRACT
Optical fiber with YPO4Pr3+ nanocrystals (NCs) is presented for the first time using the glass powder-NCs doping method. The method's advantage is separate preparation of NCs and glass to preserve luminescent and optical properties of NCs once they are incorporated into optical fiber. The YPO4Pr3+ nanocrystals were synthesized by the co-precipitation and hydrothermal methods, optimized for size (< 100 nm), shape, Pr3+ ions concentration (0.2 mol%), and emission lifetime. The core glass was selected from the non-silica P2O5-containing system with refractive index (n = 1.788) close to the NCs (no = 1.657, ne = 1.838). Optical fiber was drawn by modified powder-in-tube method after pre-sintering of glass powder-YPO4Pr3+ (wt 3%) mixture to form optical fiber preform. Luminescent properties of YPO4Pr3+ and optical fiber showed their excellent agreement, including sharp Pr3+ emission at 600 nm (1D2-3H4) and 1D2 level lifetime (τ = 156 ± 5 µs) under 488 nm excitation. The distribution of the YPO4Pr3+ NCs in optical fiber were analyzed by TEM-EDS in the core region (FIB-SEM-prepared). The successful usage of glass powder-NCs doping method was discussed in the aspect of promising properties of the first YPO4Pr3+ doped optical fiber as a new way to develop active materials for lasing applications, among others.
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MEDLINE
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Ano de publicação:
2024
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Article