Spectral properties of erbium-doped heavy metal oxyfluoride silicate glasses for broadband amplification

• 来源期刊: 中国物理（英文版）
• 关键词: heavy metal oxyfluoride silicate glasses spectral properties rare earth
• 年，卷（期）: 2003,（9）
• 页码范围: 997-1000
• 页数: 4页
• 语种: 英文

摘要

Erbium-doped glasses showing a wide 1.55?m emission band are reported ina novel heavy metal oxyfluoride glass system SiO2-PbO-PbF2 and their optical properties such as emission spectra,fluorescence lifetime and the refractive index have been investigated.The broad and flat 4I13/2 →4I15/2 emission of Er3+ ions around 1.55μm can be used as host materials for potential optical amplifiers in wavelength-division-multiplexing network system.We find that with increasing PbF2 content in the glass composition,the fluorescence full width at half maximum and fluorescence lifetime of the 4I13/2 level of Er3+ increase,while refractive index and density decrease.