Relaxation process of the ⁴I_13/2 level of Er³⁺ in a borosilicate glass

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• 作者：Meisong Liao ; Tatsuya Yamashita ; Lihui Huang ; Yusuke Arai ; Takenobu Suzuki ; Yasutake Ohishi
• 关键词：Optical spectroscopy ; Borosilicates ; Rare-earths in glasses
• 刊名：Journal of Non-Crystalline Solids
• 出版年：2009
• 出版时间：15 January 2009
• 年：2009
• 卷：355
• 期：2
• 页码：96-100
• 全文大小：363 K

文摘

Relaxation of 1.54 μm emission of the erbium doped borosilicate glasses with high rare earth solubility was investigated. When the erbium content is less than 0.2 wt % , multi-phonon relaxation is the predominant process of non-radiative relaxation. It is difficult to increase the quantum efficiency higher than 70 % for erbium ions in this glass due to multi-phonon relaxation. Because of the good glass-formation ability and high rare earth solubility, this glass will be suitable as a host for rare earth ions with a large energy gap, such as Yb³⁺, Eu³⁺ or Tb³⁺.