Mixed Former Effect on Spectroscopic Properties of Er3+-doped Bismuth-based Glass for Optical Amplifier
掺铒铋酸盐玻璃光谱性质的混合形成体效应

Er3+-doped bismuth-based glasses with compositions of (50-75)Bi2O3-(20-45)B2O3-5Na2O, 70Bi2O3-(17-25)B2O3-xZrF4-5Na2O, 70Bi2O3-(0-25)B2O3-(0-25)SiO2-5Na2O were prepared. The absorption spectra, emission spectra and lifetime of 4I13/2 level of Er3+ ion were measured. The mixed former effect was mentioned firstly and its effects on spectroscopic properties of Er3+ ion were investigated. The results indicate that an increase of effective absorption bandwidth, emission cross section, FWHM, and relatively higher lifetime could be obtained in the bismuth-based glasses through mixed former effects. All these data suggest that Er3+ doped bismuth-based glass is a good candidate host material for optical amplifiers to realize broadband and high gain amplification.