1. The China-Germany Research Center for Photonic Materials and Device
2. State Key Laboratory of Luminescent Materials and Devices, and Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques
3. School of Materials Science and Engineering
4. South China University of Technology
5. Guangzhou 510641
6. College of Mathematics and Physics
7. Chongqing University of Posts and Telecommunications
8. Chongqing 400065
9. P. R. China
10. Institute of Physics
11. Guangdong Research Institute of Rare Metals
12. Guangzhou 510651