1. Spectroscopic and laser properties of Tm:CNGG crystals grown by the micro-pulling-down method.
- Author
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Xue, Yanyan, Li, Na, Wang, Donghai, Wang, Qingguo, Liu, Bin, Song, Qingsong, Li, Dongzhen, Xu, Xiaodong, Gu, Hongan, Qin, Zhipeng, Xie, Guoqiang, Wang, Zhanshan, and Xu, Jun
- Subjects
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SEMICONDUCTOR lasers , *CRYSTALS , *SINGLE crystals , *FLUORESCENCE spectroscopy , *CONTINUOUS wave lasers , *CRYSTAL structure , *ABSORPTION spectra - Abstract
Tm3+-doped calcium niobium gallium garnet (Tm:CNGG) single crystals have been successfully grown by the micro-pulling-down (μ-PD) method. The crystal structure, absorption spectra, fluorescence spectra and lifetimes of Tm:CNGG crystals were investigated. The absorption and emission bandwidths of Tm:CNGG crystals are larger than those of other Tm3+ doped garnet crystals, which will be beneficial for laser diode (LD) pumping and ultrashort pulse generation. Additionally, continuous wave (CW) laser operation around 2 μm was achieved in the 2.0 at.% Tm:CNGG crystal by LD pumping. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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