Absorption and emission spectroscopy in Er3+-Yb3+ doped aluminum oxide waveguides
Absorption and emission spectroscopy in Er3+-Yb3+ doped aluminum oxide waveguides
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DOI：
10.1016/s0925-3467(02)00056-3
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发表时间：
2003-02-01
影响因子：
3.9
通讯作者：
Polman, A
中科院分区：
文献类型：
--
作者：
Strohhöfer, C;Polman, A
The spectroscopic properties of Al2O3 waveguides ion implanted with Er3+ and Yb3+ are investigated in view of their application in optical amplifiers operating at 1530 run. Absorption cross-sections are obtained by means of waveguide transmission experiments, taking into account the overlap between optical mode and doped region of the waveguide. Emission cross-sections for the Er3+:I-4(13/2) and Yb3+:F-2(5/2) levels are calculated from the absorption cross-sections. The rate coefficient for energy transfer between Yb3+ and Er3+ under excitation around 980 nm is estimated by emission intensity and decay rate measurements. It amounts to approximately 3.6 x 10(-11) cm(3)/S for concentrations of 0.29 at.% erbium and 0.28 at.% ytterbium. (C) 2002 Elsevier Science B.V. All rights reserved.
