1. Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology Beijing Jiaotong University Beijing China
2. National Institute of Metrology Beijing China
3. National Center of Measurement and Testing for East China, National Center of Testing Technology Shanghai Institute of Measurement and Testing Technology Shanghai China
4. Institute of Microelectronics of the Chinese Academy of Sciences Beijing China
5. The Academy for Engineering & Technology Fudan University Shanghai China