1. Key Laboratory of Optoelectronic and Telecommunication of Jiangxi Province, School of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, China
2. Department of Optical Engineering, School of Mechanical Engineering, Jiangsu University, Zhenjiang, China
3. State Grid Jiangxi Electric Power Corporation, Information and Communication Branch, Nanchang, China
4. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai, China