期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 32, 页码 16540-16545出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm33057a
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资金
- CNPq
- FAPESP
Glasses with base composition (in mol%) 70TeO(2)-15GeO(2)-5K(2)O-10Bi(2)O(3) were prepared by the melt-quenching method. Er3+/Yb3+-doped and non-doped glass compositions were used as core and cladding, respectively, in the preparation of optical fibers through the sucking method. Infrared emission at 1550 nm and up-conversion emission in the visible range under 980 nm pumping are reported for glasses and optical fibers. A relatively large (Delta lambda = 91 nm) bandwidth was observed for the Er3+ 1550 nm emission. Up-conversion luminescence was observed and evaluated as a function of pump power at 980 nm. The efficient emission in the visible and infrared ranges makes this optical fiber potentially useful for amplifier and laser applications in photonics.
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