Broadband near-infrared luminescence and energy transfer in Bi singly-doped and Bi/Yb co-doped titanate glasses

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2012,（6）
• 页码范围: 456-459
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11801-012-2315-5

摘要

Super-broadband near-infrared (NIR) emission from 1100 nm to 1600 nm is observed in Bi-doped titanate glasses at the excitation of 808 nm laser diode (LD).The effects of Bi content on the optical spectra are investigated.It is also found that the Bi-related emission intensity can be enhanced by Yb3+ co-doping at the excitation of 980 nm LD.It should be ascribed to the energy transfer from Yb3+ to active Bi ions.The energy transfer processes are studied based on the Inokuti-Hirayama (I-H) model,and the energy transfer of electric dipole-dipole interaction is confirmed to be dominant in Bi/Yb co-doped glasses.