Temperature effect on emission spectra and fluorescence lifetime of the 4I13/2 state of Er3+-doped Gd2SiO5 crystal

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2011,（9）
• 页码范围: 60-63
• 页数: 4页
• 语种: 英文
• DOI: 10.3788/COL201109.091602.

摘要

By measuring the emission spectra and the fluorescence lifetime of the 4I13/2 state of Er3+ ions in Gd2SiO5crystal at different temperatures,the effects of temperature on the spectra and the lifetime of the 4I13/2state are investigated.When the temperature increases,the emission line width for the 4I13/2 →4I15/2transition is broadened,and the main emission lines at 1596,1609,and 1644 nn shifte toward shorterwavelengths.The measured lifetime of the 4I13/2 state decreases from 13.2 to 8.4 ms with temperatureincrease from 13 to 300 K,which is mainly due to the temperature dependence of multiphonon relaxationbetween the 4I13/2 and 4I15/2 states and the changing population distribution among the Stark levels withinthe 4I13/2 state.The experimental results imply that low temperature condition is better for the ～1.6-μmlaser output.