Chinese Optics Letters, 2010, 8 (1): 78, Published Online: Mar. 1, 2010
2 \mu m emission performance of Tm3+-Ho3+ co-doped tellurite glasses 
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2μm荧光 Tm3+-Ho3+共掺 碲酸盐玻璃 160.5690 Rare-earth-doped materials 160.4670 Optical materials 300.6280 Spectroscopy, fluorescence and luminescence 160.2750 Glass and other amorphous materials
Abstract
The emission properties of 2 \mu m region fluorescence of Tm<sup><sup>3+</sup></sup>-Ho<sup><sup>3+</sup></sup> co-doped tellurite glasses are investigated. Introducing F<sup>-</sup> ions to the composition of tellurite glasses plays a positive effect on the 2 \mu m emission. A maximum intensity of 2 \mu m emission is achieved when 1.5-mol% Tm<sub>2</sub>O<sub>3</sub> and 1-mol% Ho<sub>2</sub>O<sub>3</sub> concentration are doped in the glasses. The emission cross section and gain coefficient of the <sup>5</sup>I<sub>8</sub>-<sup>5</sup>I<sub>7</sub> transition of Ho<sup><sup>3+</sup></sup> are calculated. The emission cross section has a maximum of 1.29×10<sup>-20</sup> cm<sup>2</sup> at 2048 nm wavelength. The results indicate that Tm<sup><sup>3+</sup></sup>-Ho<sup><sup>3+</sup></sup> co-doped tellurite glasses are suitable for 2 \mu m application.
Meng Wang, Guonian Wang, Lixia Yi, Shunguang Li, Lili Hu, Junjie Zhang. 2 \mu m emission performance of Tm3+-Ho3+ co-doped tellurite glasses[J]. Chinese Optics Letters, 2010, 8(1): 78.
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