Effect of alkali metal oxides R2O （R=Na,K） on 1.53 μm luminescence of Er3+-doped Ga2O3-GeO2 glasses for optical amplification
来源期刊：JOURNAL OF RARE EARTHS2013年第9期
论文作者：赵营刚 石冬梅
文章页码：857 - 863
摘 要：This paper reported the thermal stability and spectroscopic properties of Ga2 O3-GeO2-Na2 O-K2 O（GGNK） glasses doped with Er3+.The GGNK glasses were characterized by differential scanning calorimetry（DSC）,Raman spectra,absorption and infrared-visible fluorescence spectra.Measured DSC result showed that these glasses possessed an excellent stability（ΔT=188.6 oC）.The relationship between glass composition and Judd-Ofelt intensity parameters and other optical properties of Er3+,such as the absorption and stimulated emission cross-sections,were clarified.Meanwhile an intense broadband 1.53-μm emission with a full width at halfmaximum of 51 nm and peak emission cross-section of 9.32×10-21cm2of Er3+-doped GGNK glass was obtained upon 980 nm diode-laser excitation.Effects of K2 O replacing Na2 O on the thermal stability and spectroscopic properties were investigated.It was found that the incorporation of K2 O into Er3+-doped Ga2 O3-GeO2-Na2 O glass could effectively improve the 1.53 μm emission luminescence.The results showed that GGNK glass might be more attractive host material for their application in C-band optical fiber amplifiers.
赵营刚，石冬梅
Department of Materials Science and Engineering,Luoyang Institute of Science and Technology
摘 要：This paper reported the thermal stability and spectroscopic properties of Ga2 O3-GeO2-Na2 O-K2 O（GGNK） glasses doped with Er3+.The GGNK glasses were characterized by differential scanning calorimetry（DSC）,Raman spectra,absorption and infrared-visible fluorescence spectra.Measured DSC result showed that these glasses possessed an excellent stability（ΔT=188.6 oC）.The relationship between glass composition and Judd-Ofelt intensity parameters and other optical properties of Er3+,such as the absorption and stimulated emission cross-sections,were clarified.Meanwhile an intense broadband 1.53-μm emission with a full width at halfmaximum of 51 nm and peak emission cross-section of 9.32×10-21cm2of Er3+-doped GGNK glass was obtained upon 980 nm diode-laser excitation.Effects of K2 O replacing Na2 O on the thermal stability and spectroscopic properties were investigated.It was found that the incorporation of K2 O into Er3+-doped Ga2 O3-GeO2-Na2 O glass could effectively improve the 1.53 μm emission luminescence.The results showed that GGNK glass might be more attractive host material for their application in C-band optical fiber amplifiers.
关键词：
