Research On Erbium Doped Bismuth Phosphate Glass

Aiming at the needs of bandwidth of EDFA in modern times, a new sort of amplifier glass materials was designed.The forming range of erbium doped bismuth phosphate glass was deplored. The double doped of erbium ytterbium experiment and the triple doped of erbium ytterbium neodymium experiment were done. The infection factors on the bandwidth of erbium doped bismuth phosphate glass were analysed . The absorption spectra and fluorescence spectra were tested.The spectrum properties and physical chemistry properties were anlysed using Judd-Ofelt theory and McCumber theory according to the testing results. The infection factors on Ω₂,Ω₄,Ω₆ were discussed.Based on the project, this new kinds of optical amplifiering material was prepared. The half fluorescence bandwidth is 54nm, the fluorescence life is 8ms ,the refractive index is 1.5644 and the expanding coefficient is 55.393×10^-7.The results showed that this new kind of materials is a good optical amplifiering material with cheap price , good physical chemistry properties and excellent bandwidth.