Spectroscopic properties and energy transfer processes in Er3+/Nd3+ co-doped tellurite glass for 2.7-μm laser materials

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2012,（7）
• 页码范围: 62-66
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL201210.071603

摘要

Intense 2.7-μm emissions are obtained from Er3+/Nd3+ co-doped tellurite glass samples under the 808-nm laser diode excitation.According to the absorption spectra,Judd-Ofelt parameters and radiative transition probabilities are calculated and analyzed using the Judd-Ofelt theory.The spectroscopic properties and energy transfer mechanism between Er3+ and Nd3+ are analyzed.The effects of OH- content on the spectroscopic properties of Er3+/Nd3+ co-doped samples are discussed.The obtained results indicate that Er3+/Nd3+ co-doped tellurite glass can significantly develop optical properties of 2.7-μm emission,if OH-groups can be effectively eliminated.