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|Type:||Artigo de evento|
|Title:||Ultra Large Amplification Bandwidth Of Er3+ And Tm3+ At S And L Band From Teo2-wo3-na2o-nb 2o5 Glass Doped Optical Fibers|
|Abstract:||Tellurite glasses optical fibers became promising for optical amplifiers due to its high rare earth ions solubility and very large amplification bandwidth. Among several tellurite glasses the TeO2-WO 3-Na2O-Nb2O5 system show one of the largest bandwidth. Our previous characterization of lifetime using the Ω2, Ω4, Ω6, Judd-Ofelt parameters indicate a quantum efficiency maximum for 7500ppm Er3+ concentration. Therefore we decided to produce jointed Er3+ and Tm3+ single mode optical fibers with this glass system keeping the 7500ppm Er3+ concentration and varying the Tm3+ concentration from 2500ppm to 15000ppm. This single mode fiber was pumped by 120mW of the semiconductor laser at 790nm and we observed a flat ASE bandwidth from 1400 to 1570nm for the 5000ppm Tm3+ concentration.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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