Intense 2.0 μm emission properties and energy transfer of Ho3+/Tm3+/Yb3+ doped fluorophosphate glasses

被引：22
作者：
Tian, Ying [1 ,2 ]
Xu, Rongrong [1 ,2 ]
Hu, Lili [1 ]
Zhang, Junjie [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Mat High Power Laser, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 03期
基金：
中国国家自然科学基金;
关键词：
SILICA FIBER LASER; RARE-EARTH IONS; SPECTROSCOPIC PROPERTIES; TELLURITE GLASSES; OPTICAL-PROPERTIES; YB3+; FLUORIDE; TM3+; FLUORESCENCE; STABILITY;
D O I：
10.1063/1.3611390
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Intense 2.0 mu m emission has been obtained from Ho3+/Tm3+/Yb3+ triply doped fluorophosphate glass pumped by a conventional 980 nm laser diode. The spectroscopic properties and energy transfer mechanisms between Ho3+, Tm3+ and Yb3+ are analyzed. Based on the absorption spectra, the Judd-Ofelt parameters, radiation emission rates, radiative lifetime and branching ratios of Ho3+ ions are calculated. It is also found that the 2.0 mu m emission of Ho3+ can be greatly enhanced under the excitation at 980 nm by incorporating Tm3+ and Yb3+ simultaneously. Additionally, the microparameters of the energy transfer processes are quantitatively analyzed. The energy transfer coefficient from Yb3+ to acceptors and from Tm3+ to Ho3+ can reach as high as 13.14 x 10(-40) cm(6)/s and 23.39 x 10(-40) cm(6)/s, respectively. This Ho3+/Tm3+/Yb3+ doped fluorophosphate glass possessing high energy transfer coefficient and excellent thermal stability is a promising candidate for efficient 2.0 mu m laser. (C) 2011 American Institute of Physics. [doi:10.1063/1.3611390]
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页数：6
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