1. Laser Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
2. School of Information and Automation Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
3. School of Electrical Engineering, Shandong University, Jinan, China
4. Quanzhou Institute of Equipment Manufacturing, Haixi Institutes, Chinese Academy of Sciences, Quanzhou, China