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- W2024507003 abstract "1.6 µm emission originated from Pr3+: (3F3, 3F4) → 3H4 transition in Pr3+- and Pr3+/Er3+-doped selenide glasses was investigated under an optical pump of a conventional 1480 nm laser diode. The measured peak wavelength and full-width at half-maximum of the fluorescent emission are ~1650 nm and ~120 nm, respectively. A moderate lifetime of the thermally coupled upper manifolds of ~212 ± 10 µs together with a high stimulated emission cross-section of ~(3 ± 1)×10−−20 cm2 promises to be useful for 1.6 µm band fiber-optic amplifiers that can be pumped with an existing high-power 1480 nm laser diode. Codoping Er3+ enhances the emission intensity by way of a nonradiative Er3+: 4I13/2 → Pr3+: (3F3, 3F4) energy transfer. The Dexter model based on the spectral overlap between donor emission and acceptor absorption describes well the energy transfer from Er3+ to Pr3+ in these glasses. Also discussed in this paper are major transmission loss mechanisms of a selenide glass optical fiber." @default.
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- W2024507003 date "2001-09-01" @default.
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- W2024507003 title "Pr<sup>3+</sup>- and Pr<sup>3+</sup>/ Er<sup>3+</sup>-Doped Selenide Glasses for Potential 1.6 mm Optical Amplifier Materials" @default.
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- W2024507003 doi "https://doi.org/10.4218/etrij.01.0101.0301" @default.
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