1. Jiangxi Key Laboratory of Photoelectronics and Telecommunication, College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, People’s Republic of China
2. State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
3. Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Hohai University, Changzhou, Jiangsu, People’s Republic of China
4. Hunan Provincial Collaborative Innovation Center of High Power Fiber Laser, College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, People’s Republic of China