Author Affiliations

Shanhui Xu,^1,3,4 Yuanfei Zhang,^1,2 Zhouming Feng,^1,3,4 Changsheng Yang,^1,3,4 and Zhongmin Yang^1,3,4

¹State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510640, China

²School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, China

³Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China

⁴Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, South China University of Technology, Guangzhou 510640, P. R. China