1 Chinese Academy of Sciences, Institute of Semiconductors, State Key Laboratory on Integrated Optoelectronics, Beijing, China
2 University of Chinese Academy of Sciences, School of Electronic, Electrical, and Communication Engineering, Beijing, China
3 University of Chinese Academy of Sciences, Center of Materials Science and Optoelectronics Engineering, Beijing, China
4 Beijing University of Posts and Telecommunications, State Key Laboratory of Information Photonics and Optical Communications, Beijing, China
5 Universitat Politécnica de Valencia, ITEAM Research Institute, Photonics Research Labs, Valencia, Spain
6 University of Ottawa, Microwave Photonics Research Laboratory, Ottawa, Ontario, Canada