| Abstract: | The Yb3+/Er3+ co-doped TeO2-WO3-ZnO glasses bubbling with different times were prepared. The infrared (IR) transmission spectra, emission spectra and fluorescence lifetime of Er3+ at 1.5μm were measured. The quench effects of OH groups on emission intensity of Er3+ at 1.5μm as well as the relationships between fluorescence decay rate and OH group content were investigated. The constant kOH-Er, which represents the strength of the interactions between Er3+ ions and OH groups, is approximately 17.0 × 10-20cm4/s, and is comparable to that for Er3+ in Yb3+/Er3+ co-doped phosphate glasses. |
