• Optoelectronics Letters
  • Vol. 8, Issue 6, 456 (2012)
Han TANG and Hai-ping XIA*
Author Affiliations
  • Key Laboratory of Photoelectronic Materials, Ningbo University, Ningbo 315211, China
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    Abstract

    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.
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    TANG Han, XIA Hai-ping. Broadband near-infrared luminescence and energy transfer in Bi singly-doped and Bi/Yb co-doped titanate glasses[J]. Optoelectronics Letters, 2012, 8(6): 456
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    Received: Jul. 24, 2012
    Accepted: --
    Posted: Jun. 1, 2012
    Published Online: Jul. 12, 2017
    The Author Email: Hai-ping XIA (hpxcm@nbu.edu.cn)