Lei Huang, Qingli Zhang, Jianqiao Luo, Wenpeng Liu, Junrui Zhang, Renqin Dou, Guihua Sun, Cong Quan, Yingying Chen, Shoujun Ding, Yao Liu, Ying Fan. Growth, Structure, Spectroscopy, and Laser Performance of Nd∶GSAG Crystals[J]. Chinese Journal of Lasers, 2023, 50(23): 2301007
- Chinese Journal of Lasers
- Vol. 50, Issue 23, 2301007 (2023)
Fig. 1. Nd∶GSAG crystal with doping atomic fraction of 0.94% grown by Czochralski method. (a) Before annealing; (b) after annealing
Fig. 2. LD end-pumped laser experimental setup
Fig. 3. Single crystal swing curve of Nd∶GSAG crystal with doping atomic fraction of 0.94%
Fig. 4. X-ray powder diffraction pattern of Nd∶GSAG crystal with doping atomic fraction of 0.94% and GSAG standard pattern ICSD 78052
Fig. 5. Full spectrum fitting of Nd∶GSAG crystal with doping atomic fraction of 0.94%
Fig. 6. Transmission and absorption spectra of Nd∶GSAG crystal with doping atomic fraction of 0.94%. (a) Transmission spectra; (b) absorption spectra
Fig. 7. Emission spectra of Nd∶GSAG crystals and Nd∶YAG crystals. (a) 900‒1400 nm; (b) 1045‒1085 nm
Fig. 8. Fluorescence lifetime decay curves of laser upper level 4F3/2. (a) Nd∶GSAG; (b) Nd∶YAG
Fig. 9. Laser output wavelengths of Nd∶GSAG crystal with doping atomic fraction of 0.94% and Nd∶YAG crystal with doping atomic fraction of 0.6% under different output mirrors. (a) M2; (b) M1
Fig. 10. Laser output powers of Nd∶GSAG crystal with doping atomic fraction of 0.94% and Nd∶YAG crystal with doping atomic fraction of 0.6%
Fig. 11. Beam diameter versus d for lasers with different wavelengths. (a) 942 nm; (b) 946 nm; (c) 1060 nm; (d) 1064 nm
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Table 1. Absorption characteristic parameters of Nd∶GSAG crystals and Nd∶YAG crystals
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Table 2. Laser experimental performance parameters of Nd∶GSAG crystal with doping atomic fraction of 0.94% and Nd∶YAG crystal with doping atomic fraction of 0.6%
Table 3. Fitting results of beam quality
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