Spectroscopic and continuous-wave laser properties of Er:GdScO3 crystal at 2.7 μm

被引：26

作者：

Hou, Wentao ^{[1
]}

Zhao, Hengyu ^{[1
]}

Qin, Zhipeng ^{[2
]}

Liu, Jian ^{[1
]}

Wang, Donghai ^{[1
]}

Xue, Yanyan ^{[1
]}

Wang, Qingguo ^{[1
]}

Xie, Guoqiang ^{[2
]}

Xu, Xiaodong ^{[3
]}

Xu, Jun ^{[1
]}

机构：

[1] Tongji Univ, Sch Phys Sci & Engn, Inst Adv Study, Shanghai 200092, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China

[3] Jiangsu Normal Univ, Sch Phys & Elect Engn, Jiangsu Key Lab Adv Laser Mat & Devices, Xuzhou 221116, Jiangsu, Peoples R China

来源：

OPTICAL MATERIALS EXPRESS | 2020年 / 10卷 / 11期

基金：

中国国家自然科学基金;

关键词：

GROWTH; ERBIUM; PERFORMANCE; RADIATION; OPERATION;

D O I：

10.1364/OME.405683

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Er:GdScO3 crystal was grown by the edge-defined film-fed (EFG) method for the first time. The rocking curve showed that the as-grown crystal has a high crystalline quality. The peak absorption cross section at 980 nm is 0.38x10(-20) cm(2) with full width at half maximum (FWHM) of 19.5 nm and the peak emission cross section at 2720 nm is 0.93x10(-20) cm(2) with FWHM of 149.0 nm. The fluorescence lifetimes of I-4(11/2) and I-4(13/2) were fitted to be 2.24 ms and 4.57 ms, respectively. At inversion ratio P >= 0.5, the positive local peak of gain cross-section at 2.7 mu m was obtained. Continuous-wave laser operation of Er:GdScO3 crystal was demonstrated. The maximum output power of 863 mW was obtained with a slope efficiency of 11.25%. The results indicated that Er:GdScO3 crystal is a potential laser material for 2.7 mu m laser. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：2936 / 2943

页数：8

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