1. State Key Laboratory of Information Photonics and Optical Communications, Alferov Russian-Chinese Joint Lab of Information Optoelectronics & Nanoheterostructures, and BUPT-Hengtong Joint Lab of Quantum Optoelectronics & Bivergentum Theory, Beijing University of Posts and Telecommunications, Beijing, China
2. School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing, China