Erbium doped Bi2O3-B2O3 glass-ceramics containing Bi3B5O12 and CaF2 nanocrystallites for 1.53?μm fiber lasers |
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Affiliation: | 1. State Key Laboratory of Silicate Materials for Architectures (Wuhan University of Technology), 122 Luoshi Road, Wuhan 430070, PR China;2. College of Materials, Xiamen University, 422 Simingnan-Road, Xiamen 3601005, PR China;3. Specialty Glass Engineering Technology Research Center of Hubei Province, 122 Luoshi Road, Wuhan 430070, PR China;4. Drohobych Ivan Franko State Pedagogical University, 24 I. Franko Str., Drohobych 82100, Ukraine;5. The John Paul II Catholic University of Lublin, 14 Al. Rac?awickie, Lublin 20-950, Poland |
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Abstract: | Trivalent erbium ions doped Bi2O3-B2O3 transparent glass ceramics containing CaF2 were prepared and characterized through X -ray diffraction, scanning electron microscopy, Fourier transform infrared absorption, optical absorption, and near infrared emission for 1.53 μm fiber lasers. The glass ceramics obtained by applying thermal treatment at 575 °C for 5 h and 575 °C for 10 h contain Bi3B5O12 and CaF2 crystallites. The Judd-Ofelt theory was applied to evaluate various spectroscopic and laser characteristic properties. The NIR emission corresponding to the 4I13/2 → 4I15/2 (~1.53 μm) transition was studied by exciting the samples at 514.5 nm laser radiation. The stimulated emission cross-sections of ~1.53 μm luminescence were also obtained applying the Mc Cumber theory. The experimental results confirm that the transparent glass ceramic obtained at a thermal treatment of 575 °C for 10 h is more suitable to design fiber lasers for diverse applications in the fields of industry, medicine and scientific research. |
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Keywords: | Fiber lasers Glass ceramics NIR luminescence Judd-Ofelt analysis Gain parameters |
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