外文题目: Enhanced 2.7 mu m mid-infrared emissions of Er3+ via Pr3+ deactivation and Yb3+ sensitization in LiNbO3 crystal
作者: Zhang, Peixiong; Chen, Zhenqiang; Hang, Yin; Li, Zhen; Yin, Hao; Zhu, Siqi; Fu, Shenhe; Li, Anming
刊名: Opt. Express
年: 2016 卷: 24 期: 22 页： 25202--25210
英文关键词:

OPTICAL-ABSORPTION INTENSITIES; RARE-EARTH IONS; UP-CONVERSION; SPECTROSCOPIC PROPERTIES; CHALCOGENIDE GLASS; FIBER LASERS; WAVE-GUIDES; TRANSITION; PERFORMANCE; TUNABILITY
英文摘要:
The use of Pr3+ codoping for enhancement of the transition of Er3+: I-4(11/2) -> I-4(13/2) 2.7 mu m emissions was investigated in the Er/Yb codoped LiNbO3 crystal for the first time. It is found that the codoped of Pr3+ ion in Er3+, Yb3+ and Pr3+ triply doped LiNbO3 crystal (Er/Yb/Pr: LN) greatly enhances Er3+: 2.7 mu m emission under excitation of a common 970 nm laser diode, depopulates the lower laser level of Er3+:I-4(13/2), and has little influence on the higher laser level of Er3+:I-4(11/2) at the same time for population inversion. The 2.7 mu m emission characteristics and energy transfer were investigated in detail. The energy transition efficiency from the lower laser level of Er3+:I-4(13/2) to Pr3+:F-3(4) level is as high as 0.42, indicating that the Pr3+ ion is an effective deactivation ion for Er3+ ion in LiNbO3 crystal. These results suggest that Er/Yb/Pr: LiNbO3 crystal may become an attractive host for developing solid state lasers at around 2.7 mu m under a conventional 970 nm LD pump. (C) 2016 Optical Society of America


文献类型: 期刊论文
正文语种: English
收录类别: SCIEI
DOI: 10.1364/OE.24.025202


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