Enhancement of 2.0 μm fluorescence emission in new Ho3+/Tm3+/Yb3+ tri-doped tellurite glasses
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- 作者：Pan Cheng 程盼 ; Feng-jing Yang 杨风景 ; Zi-zhong Zhou 周自忠 ; Bo Huang 黄波…
- 刊名：Optoelectronics Letters
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：12
- 期：5
- 页码：340-343
- 全文大小：338 KB
- 刊物类别：Physics and Astronomy
- 刊物主题：Physics
Applied Optics, Optoelectronics and Optical Devices
Chinese Library of Science - 出版者：Tianjin University of Technology, co-published with Springer-Verlag GmbH
- ISSN：1993-5013
- 卷排序：12
文摘
For enhancing the 2.0 μm band fluorescence of Ho3+, a certain amount of WO3 oxide was introduced into Ho3+/Tm3+/Yb3+ tri-doped tellurite glass prepared using melt-quenching technique. The prepared tri-doped tellurite glass was characterized by the absorption spectra, fluorescence emission and Raman scattering spectra, together with the stimulated absorption, emission cross-sections and gain coefficient. The research results show that the introduction of WO3 oxide can further improve the 2.0 μm band fluorescence emission through the enhanced phonon-assisted energy transfers between Ho3+/Tm3+/Yb3+ ions under the excitation of 980 nm laser diode (LD). Meanwhile, the maximum gain coefficient of Ho3+ at 2.0 μm band reaches about 2.36 cm-1. An intense 2.0 μm fluorescence emission can be realized.