Precision Instruments and Optoelectronics Engineering College, Tianjin University, Tianjin 300072

¹ Electronics Engineering Department, Tsinghua University, Beijing 100084

² Electric Power Research Institute, Beijing 100085

¹ College of Procision Instruments and Optoelectronics Engineering, Tianjin University, Open Laboratory of Photoelectronics and Information Engineering, National Educational Ministry, Tianjin 300072

² Department of Physics, Facultédes Sciences et Génie, Cité Universitaire, Québec, Canada GIK 7P4

¹ Laboratory of Light Transmission Optics, South China Normal University, Guangzhou 510631

² Department of Mathematics, South China Normal University, Guangzhou 510631

¹ The State Key Laboratory on Local Fiber-optic Communication Networks and Advanced Optical Fiber Communication Systems, Shanghai Jiaotong University, Shanghai 200030

² Department of Applied Physics, Shanghai Jiaotong University, Shanghai 200030

Automation Department, Wuxi Light Industry Institute, Wuxi 214035

Institute of Lightwave Technology, Northern Jiaotong University, Beijing 100044

National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800

Shanghai Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences, Shanghai 201800

¹ Department of Electronic Engineering, State Key Laboratory on Integrated Optoelectronics, Jilin University, Changchun 130023

² Department of Physics, Jilin Teachers College, Jilin 132011

¹ Institute of Theoretical Physics, Northeast Normal University, Changchun 130024

² Department of Physics, Jilin University, Changchun 130023

³ Tongha Teacher College, Tongha 120034

⁴ The Second Aeronautical Institute, Changchun 130022

⁵ Institute of Theoretical Chemistry, Jilin University, Changchun 130023

Department of Electronic Science and Applied Physics, Fuzhou University, Fuzhou 350002

Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800

Broadband Optical Networking Technology Center, School of Electronics and Information Technology, Shanghai Jiao Tong University, Shanghai 200030

¹ Department of Physics, Wuhan University, Wuhan 430072

² International Center for Material Physics, Shenyang 110015

¹ National Center of Laser Technology, Beijing Polytechnic University, Beijing 100022

² Institute of Technical Physics, German Aerospace Research Establishment, 70569 Stuttgart, Germany

College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072

Laboratory for Quantum Optics of ECNU, National Education Commission Department of Physics, East China Normal University, Shanghai 200062

Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Scienices, Shanghai 201800