1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan 030006, P. R. China
2. PolySense Lab—Dipartimento Interateneo di Fisica, University and Politecnico of Bari, CNR-IFN, Via Amendola 173, 70125 Bari, Italy
3. Photonics Research Group, Dipartimento di Ingegneria Elettrica e dell’Informazione, Politecnico di Bari, Via Orabona 4, Bari 70126, Italy
4. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, P. R. China