1. College of Electronic Science & Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China
2. Aviation University of Air Force, 7855 Renmin Street, Changchun 130012, China
3. State Key Laboratory of High Power Semiconductor Lasers, School of Science, Changchun University of Science and Technology, 7089 Wei-Xing Road, Changchun 130022, China
4. Changchun University of Science and Technology Chongqing Research Institute, 618 Liangjiang Road, Chongqing 130022, China