Praseodymium Rare Earth Doped Tellurite Glasses
来源期刊：材料科学与工程学报2000年增刊第1期
论文作者：S.Q.Man E.Y.B.Pun R.S.F.Wong P.S.Chung
摘 要：Praseodymium (Pr3+)-doped tellurite glasses suitable for planar waveguide device applications at 1.3μm operation have been fabricated and characterized optically. The maximum phonon band of undoped glasses is at 738 cm-1, and the emission from the Pr3+: 1G4→3H5 transition is at 1.33 μm wavelength with a spectral bandwidth of 100nm,The lifetime of the 1G4 level is ～24 us, and the quantum efficiency is ～ 2.6 % which is similar to that in fluorozirconate glasses. The resonant energy transfer between Pr3+ and Yb3+ in tellurite glasses has been investigated. Energy absorbed by Pr3+ is transferred efficiently to Yb3+, and fluorescence around 1.00 μm is observed.
S.Q.Man1，E.Y.B.Pun1，R.S.F.Wong1，P.S.Chung1
(1.Department of Electronic Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong)
摘要: Praseodymium (Pr3+)-doped tellurite glasses suitable for planar waveguide device applications at 1.3μm operation have been fabricated and characterized optically. The maximum phonon band of undoped glasses is at 738 cm-1, and the emission from the Pr3+: 1G4→3H5 transition is at 1.33 μm wavelength with a spectral bandwidth of 100nm,The lifetime of the 1G4 level is ～24 us, and the quantum efficiency is ～ 2.6 % which is similar to that in fluorozirconate glasses. The resonant energy transfer between Pr3+ and Yb3+ in tellurite glasses has been investigated. Energy absorbed by Pr3+ is transferred efficiently to Yb3+, and fluorescence around 1.00 μm is observed.
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