Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5397436 | Journal of Luminescence | 2017 | 7 Pages |
Abstract
1 at% Er3+ doped Er: GdTaO4 laser crystal with high optical quality was successfully grown by the Czochralski method. The structural parameters were obtained by the X-ray Rietveld refinement. A high crystalline quality of Er: GdTaO4 was determined by the X-ray rocking curve. The transition intensity parameters of Er3+ ions were fitted according to the absorption spectra along three principal polarization directions. The relatively larger emission cross section (1.022Ã10â20 cm2), long fluorescence lifetime ( 5.66 ms) and relatively weaker reabsorption phenomenon around 1.6 µm indicate that 1 at% Er: GdTaO4 crystal can be used as a promising NIR laser material. Meanwhile, the stimulated emission cross-section spectra along three principal polarization directions were investigated for 4I13/2 â4I15/2 transitions at 1.5-1.6 µm which indicates a great potential of Er: GdTaO4 for multi-wavelength emission at 1.5-1.6 µm. In addition, the possibility of generating green and red lasers in Er: GdTaO4 was also analyzed and evaluated.
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Authors
Yuanzhi Chen, Fang Peng, Qingli Zhang, Wenpeng Liu, Renqin Dou, Shoujun Ding, Jianqiao Luo, Dunlu Sun, Guihua Sun, Xiaofei Wang,