Acta Optica Sinica, Volume. 36, Issue 6, 616002(2016)
Study on Mid-Infrared Spectral Properties of Ho3+/Yb3+ Co-Doped Fluorogermanate Glasses
Emission properties of mid-infrared at 2.0 μm and 2.85 μm, and visible up-conversion as well as energy transfer mechanism between two rare earth ions, Ho3+ and Yb3+, are studied in Ho3+/Yb3+ co-doped fluorogermanate glasses pumped by a 980 nm laser diode. Enhanced mid-infrared 2.0 μm and 2.85 μm emission is obtained in fluorogermanate glass samples which is co-doped with 1% Ho2O3 and 9% Yb2O3(mole fractions). The measured decay lifetime of Ho3+ is 6.19 ms, and the theoretically calculated maximum emission cross section at 2023 nm is about 6.6×10-21 cm2. The results indicate that Ho3+/Yb3+ co-doped fluorogermanate glasses are suitable for mid-infrared 2.0 μm and 2.85 μm emission.
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Qian Guoquan, Tang Guowu, Qian Qi, Chen Ganxin. Study on Mid-Infrared Spectral Properties of Ho3+/Yb3+ Co-Doped Fluorogermanate Glasses[J]. Acta Optica Sinica, 2016, 36(6): 616002
Category: Materials
Received: Jan. 13, 2016
Accepted: --
Published Online: May. 25, 2016
The Author Email: Guoquan Qian (msqianguoquan@mail.scut.edu.cn)