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18 December 2014 Preparation and spectral properties of Ho3+/Tm3+ co-doped Germanium glass active optical fiber material
L. L. Wang, Y. Y. Guo, C. M. Gao, F. Tan, J. Wang, K. X. Han, F. X. Yu
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Proceedings Volume 9295, International Symposium on Optoelectronic Technology and Application 2014: Laser Materials Processing; and Micro/Nano Technologies; 92950F (2014) https://doi.org/10.1117/12.2069470
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China
Abstract
A series of Tm3+/Ho3+ sensitized 65GeO2-7BaF2-10B2O3-4Al2O3-4ZnO2-10Na2O glass samples were synthesized using high temperature melting method. The spectral properties were systematically studied when Ho3+ concentration was 0.1, 0.3, 0.5 mol% and Tm2O3 changed from 0.3 mol% to 2.5mol%. Differential thermal analysis showed that ΔT was higher than 190°C, which illustrated this kind of matrix glass have better thermal stability. The absorption cross section peak height, free energy of Ho3+ from 5I8 to 5I7, and emission cross section were calculated according to Mc-Cumber theory. Under the excitation of 808nm laser diode, fluorescence intensity at 1954nm reached the highest value when the concentration of Ho3+ was 0.1mol% and Tm3+ was 0.7mol%. However the fluorescence intensity reduced greatly when Ho3+ concentration was 0.5mol% and Tm3+ exceeded 1.5mol%. The sensitized function and influence of different Tm3+/Ho3+ doped ion ratios on the spectral properties were studied.
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L. L. Wang, Y. Y. Guo, C. M. Gao, F. Tan, J. Wang, K. X. Han, and F. X. Yu "Preparation and spectral properties of Ho3+/Tm3+ co-doped Germanium glass active optical fiber material", Proc. SPIE 9295, International Symposium on Optoelectronic Technology and Application 2014: Laser Materials Processing; and Micro/Nano Technologies, 92950F (18 December 2014); https://doi.org/10.1117/12.2069470
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KEYWORDS
Glasses
Luminescence
Absorption
Ions
Optical fibers
Holmium
Infrared radiation
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