1. State Key Laboratory of Luminescent Materials and DevicesSchool of Materials Science and EngineeringSouth China University of TechnologyGuangdong Provincial Key Laboratory of Fiber Laser Materials and Applied TechniquesGuangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices Guangzhou 510640 China
2. Guangzhou Key Laboratory for Special Fiber Photonic Devices and ApplicationsSouth China Normal University Guangzhou 510006 China
3. State Key Laboratory of Modern Optical InstrumentationCollege of Optical Science and Engineering Zhejiang University Hangzhou 310027 China