1. Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng, China
2. North China Institute of Computing Technology, Beijing, China
3. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, China
4. College of Integrated Circuits and Optoelectronic Chips, Shenzhen Technology University, Shenzhen, China