Dependence of optical and thermal properties on concentration and temperature for Yb:YAG laser ceramics

JOURNAL OF ALLOYS AND COMPOUNDS

卷:593

Article

Tang, Fei^1,2  Wang, Wenchao¹  Yuan, Xuanyi¹  Zhu, Chen¹  Huang, Jiquan²  Ma, Chaoyang¹  Wang, Fangyu¹  Lin, Yue²  Cao, Yongge^1,2 

[1] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Peoples R China

关键词: YAG laser ceramics;    Absorption edge;    Fluorescence property;    Thermal diffusivity;    Laser performance;   

DOI  :  10.1016/j.jallcom.2013.12.194

来源: Elsevier

【 摘 要 】

This paper reports the influence of temperature and doping concentration on optical and thermal properties of Yb:YAG transparent ceramics. The rise of Yb doping concentration causes the gradual red-shift of absorption edge, and both Yb3+ absorption coefficient and fluorescence lifetime increases. For 5%Yb:YAG ceramic, as temperature increases from 100 K to room temperature, the fluorescence intensity decreases with broadening of each peak. By using a 940 nm diode laser as the pumping source, we obtained a high slope efficiency of 49% for 5% Yb:YAG ceramics, compared with 41% for 10%Yb:YAG ceramic. (C) 2014 Elsevier B.V. All rights reserved.

【 授权许可】

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