Spectral Properties and Thermal Stability of Er3+ Doped Lead Oxyfluoride Silicate Glasses for Broadband Amplification
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Er3+-doped 50SiO2-(50-x) PbO-xPbF2 glasses were prepared. The effect of PbF2 content on refractive index, density, absorption spectra, the Judd-Ofelt parameters Ωt (t=2, 4, 6), fluorescence spectrum and the lifetime of 4I13/2 level of the glass samples were investigated, and the stimulated emission cross-section was calculated from McCumber theory. With increasing PbF2 content in the glass composition, the Ω6 parameter, fluorescence full width at half maximum (FWHM) and lifetime of 4I13/2 level of Er3+ increase, while refractive index and density decrease. The FWHM value is related to the Ω6 parameter, and the lager the Ω6 parameter, the broader the FWHM. Compared with other glass hosts, the gain bandwidth properties of Er3+-doped 50SiO2-50PbF2 glass is close to those of tellurite and bismuth glasses, and has advantage over those of silicate, phosphate and germante glasses.
- 公益社団法人 日本セラミックス協会の論文
公益社団法人 日本セラミックス協会 | 論文
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