1. State Key Laboratory of Advanced Optical Communication Systems and Networks, Center for Quantum Sensing and Information Processing, Shanghai Jiao Tong University 1 , Shanghai 200240, China
2. Institute of Quantum Sensing and Information Processing, School of Sensing Science and Engineering, Shanghai Jiao Tong University 2 , Shanghai 200240, China
3. Shanghai XunTai Quantech Co., Ltd 3 , Shanghai 200241, People's Republic of China