1. State Key Laboratory of Luminescent Materials and Devices School of Materials Science and Engineering South China University of Technology. Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices Guangzhou 510640 China
2. School of Physics and Optoelectronics South China University of Technology Guangzhou 510640 China
3. Institute of Modern Optical Technologies School of Physics and Telecommunication Engineering South China Normal University Guangzhou 510006 China
4. College of Optical Science and Engineering Zhejiang University Hangzhou 310027 China