出版社：Electronics and Telecommunications Research Institute
摘要：emission originated from transition in -doped selenide glasses was investigated under an optical pump of a conventional 1480 nm laser diode. The measured peak wavelength and fullwidth at half-maximum of the fluorescent emission are ~1650nm and 120nm, respectively. A moderate lifetime of the thermally coupled upper manifolds of together with a high stimulated emission cross-section of promises to be useful for band fiber-optic amplifiers that can be pumped with an existing high-power 1480 nm laser diode. Codoping enhances the emission intensity by way of a nonradiative energy transfer. The Dexter model based on the spectral overlap between donor emission and acceptor absorption describes well the energy transfer from to in these glasses. Also discussed in this paper are major transmission loss mechanisms of a selenide glass optical fiber.
