Efficient Ho:(Sc0.5Y0.5)2SiO5 laser at 2.1 μm in-band pumped by Tm fiber laser

被引：11
作者：
Duan, Xiaoming [1 ,2 ]
Qian, Chuanpeng [1 ]
Shen, Yingjie [3 ]
Su, Liangbi [4 ]
Zheng, Lihe [4 ]
Li, Linjun [5 ]
Yao, Baoquan [1 ]
Dai, Tongyu [1 ]
机构：
[1] Harbin Inst Thchnol, Natl Key Lab Tunable Laser Technol, Harbin 150001, Heilongjiang, Peoples R China
[2] Univ Cent Florida, CREOL, Orlando, FL 32816 USA
[3] Yantai Univ, Sch Optoelect Informat Sci & Technol, Yantai 264005, Peoples R China
[4] Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Transparent & Optofunct Inorgan Mat, Synthet Single Crystal Res Ctr, Shanghai 201899, Peoples R China
[5] Harbin Univ Sci & Technol, Higher Educ Key Lab Measuring & Control Technol &, Harbin 150080, Heilongjiang, Peoples R China
来源：
OPTICS EXPRESS | 2019年 / 27卷 / 04期
基金：
中国国家自然科学基金;
关键词：
CONTINUOUS-WAVE; SC2SIO5; CRYSTAL; PERFORMANCE;
D O I：
10.1364/OE.27.004522
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we demonstrate a new 2.1-mu m Ho:(Sc0.5Y0.5)(2)SiO5 (Ho:SYSO) laser at room temperature. The absorption and emission spectra of Ho:SYSO crystal were studied at temperature of 300 K. The strongest absorption peak of I-5(7) level of Ho ions in SYSO crystal is located at 1943 nm with cross section of 0.79 x 10(-20) cm(2). The maximum emission cross section of 1.74 x 10(-20) cm(2) is located at 2032 nm. A 1940.3-nm narrow-linewidth Tm fiber was used to pump the Ho:SYSO crystal. At absorbed pump power of 20.4 W, the continuous wave Ho: SYSO laser yielded 10.3 W maximum output power at 2097.67 nm and 54.7% slope efficiency respect with absorbed pump power. In addition, we have estimated the beam quality factor (M-2) of Ho:SYSO laser to be 1.7 near maximum output level. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
引用
收藏
页码：4522 / 4527
页数：6
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