Highly efficient CW laser operation in 4 at. % Tm3+ and 4 at. % Y3+ codoped CaF2 crystals

doi:10.3788/COL201816.051401

	Highly efficient CW laser operation in 4 at. % Tm3+ and 4 at. % Y3+ codoped CaF2 crystals
	Guo, Xinsheng 1; Wu, Qinghui 1; Guo, Linyang 2; Ma, Fengkai 1; Tang, Fei 1; Zhang, Cheng 3; Liu, Jie 3; Mei, Bingchu ; Su, Liangbi 1,4
刊名	CHINESE OPTICS LETTERS
	2018
卷号	16 期号:5
ISSN号	1671-7694
DOI	10.3788/COL201816.051401
英文摘要	Tm:CaF2 and Tm,Y:CaF2 single crystals were prepared by the temperature gradient technique. The spectral properties of Tm,Y:CaF2 single crystals were investigated and compared with those of Tm:CaF2. It was demonstrated that codoping with Y3+ ions could efficiently improve the spectroscopic properties. Tm,Y:CaF2 crystals have larger absorption cross-sections at the pumping wavelength, larger mid-infrared stimulated emission cross-sections, and much longer fluorescence lifetimes of the upper laser level (Tm3+: H-3(4) level) than Tm:CaF2 crystals. Continuous-wave (CW) lasers around 1.97 mu m were demonstrated in 4.0 at. % Tm,4.0 at. % Y:CaF2 single crystals under 792 nm laser diode (LD) pumping. The best laser performance has been demonstrated with a low threshold of 0.368 W, a high slope efficiency of 54.8%, and a maximum output power of 1.013 W.
学科主题	Optics
出版者	CHINESE LASER PRESS
WOS记录号	WOS:000431892300013
资助机构	This work was financially supported by the National Natural Science Foundation of China (Nos. 61422511, 61635012, and 51432007) and the Strategic Priority Program of the Chinese Academy of Sciences (No. XDB16030000). ; This work was financially supported by the National Natural Science Foundation of China (Nos. 61422511, 61635012, and 51432007) and the Strategic Priority Program of the Chinese Academy of Sciences (No. XDB16030000).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24923]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Wuhan Univ Technol, Sch Mat Sci & Engn, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent & Optofunct Inorgan Mat, Synthet Single Crystal Res Ctr, Shanghai 201899, Peoples R China 3.Changchun Univ Sci & Technol, State Key Lab High Power Semicond Lasers, Changchun 130022, Peoples R China 4.Shandong Normal Univ, Coll Phys & Elect, Shandong Prov Key Lab Opt & Photon Device, Jinan 250014, Shandong, Peoples R China 5.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 201899, Peoples R China
推荐引用方式 GB/T 7714	Guo, Xinsheng,Wu, Qinghui,Guo, Linyang,et al. Highly efficient CW laser operation in 4 at. % Tm3+ and 4 at. % Y3+ codoped CaF2 crystals[J]. CHINESE OPTICS LETTERS,2018,16(5).
APA	Guo, Xinsheng.,Wu, Qinghui.,Guo, Linyang.,Ma, Fengkai.,Tang, Fei.,...&Su, Liangbi.(2018).Highly efficient CW laser operation in 4 at. % Tm3+ and 4 at. % Y3+ codoped CaF2 crystals.CHINESE OPTICS LETTERS,16(5).
MLA	Guo, Xinsheng,et al."Highly efficient CW laser operation in 4 at. % Tm3+ and 4 at. % Y3+ codoped CaF2 crystals".CHINESE OPTICS LETTERS 16.5(2018).