1. State Key Laboratory of Information Photonics and Optical Communications
2. Beijing University of Posts and Telecommunications
3. Beijing 100876
4. China
5. School of Sciences
6. School of Information and Communication Engineering
7. Beijing Computational Science Research Center
8. Beijing 100193
9. State Key Laboratory of Functional Materials for Informatics
10. Shanghai Institute of Microsystem and Information Technology
11. Chinese Academy of Sciences
12. Shanghai 200050