Efficient 1.8 μm Emission of a Novel Tm3+ Doped Germanate-Tellurite Glass
PENG Ya-Pei1,2 , GUO Yan-Yan1,2 , ZHANG Jun-Jie1**
1 Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2018002 University of Chinese Academy of Sciences, Beijing 100039
Abstract ：A new type of germanate-tellurite glass with doped Tm3+ ions is synthesized and its 1.8 μm emission properties have been studied for its application as a laser material. The Judd–Ofelt intensity parameters, emission cross section, absorption cross section, and gain coefficient of Tm3+ ions are calculated and analyzed. Germanate-tellurite glass with 1.0 mol% Tm2 O3 possesses the highest spontaneous transition probability (423.4 s?1 ) and the largest calculated emission cross section (6.91×10?21 cm2 ) at 1.8 μm corresponding to the 3 F4 → 3 H6 transition. The good 1.8 μm emission performance suggests that this glass may become an attractive host for developing solid state lasers operating in the mid-infrared.
收稿日期: 2013-01-28
出版日期: 2013-05-31
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2013, Vol. 30 
