Spectral properties and laser performance of Ho: CNGG crystals grown by the micro-pulling-down method

被引:0
作者
Xue Y. [1 ]
Li N. [1 ]
Song Q. [2 ]
Xu X. [2 ]
Yang X. [3 ]
Dai T. [4 ]
Wang D. [1 ]
Wang Q. [1 ]
Li D. [2 ]
Wang Z. [1 ]
Xu J. [1 ]
机构
[1] School of Physics Science and Engineering, Institute for Advanced Study, Tongji University, Shanghai
[2] Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou
[3] College of Power and Energy Engineering, Harbin Engineering University, Harbin
[4] National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin
来源
Optical Materials Express | 2019年 / 9卷 / 06期
基金
中国国家自然科学基金;
关键词
28;
D O I
10.1364/OME.9.002466
中图分类号
学科分类号
摘要
Ho3+-doped calcium niobium gallium garnet (Ho:CNGG) single crystals have been successfully grown by the micro-pulling-down (μ-PD) method. The crystal structure, spectral properties, and laser performance of Ho:CNGG crystals were investigated. The doped Ho3+ ions showed a broad absorption and fluorescence bands due to the random distribution of Nb5+, Ga3+ and cationic vacancies in the host lattices. Moreover, 1.0 at.% Ho:CNGG single crystal was end-pumped by using a diode-pumped Tm:YAP laser with central wavelength of 1937nm. The maximum output power of 1.4 W with a slope efficiency of 18.7% at 2080nm was obtained preliminarily. © 2019 Optical Society of America.
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页码:2466 / 2489
页数:23
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