Biograph: Zhenming Yu received the B.Eng. degree and in electronic science and technology, M. Eng.  degree in optical engineering from the University of Electronic Science and Technology of China (UESTC), Chengdu, China, in 2011 and 2014 and the Ph.D. degree in electronic science and technology from Tsinghua University, Beijing, China, in 2018, respectively. He is currently working as an associate researcher fellow invited specially in the State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications. His current research interests are fiber optic imaging system, optical and digital signal processing for coherent and direct-detection optical communication. 

    He has published over 30 journal and international conference papers. He was a recipient of SPIE Optics and Photonics Education Scholarship, IEEE Photonics Society Graduate Student Fellowship, National Scholarship for PhD Candidates of Tsinghua University and First prize of ZTE pengyue Algorithm Elite Challenge. He is the reviewer of IEEE/OSA Journal of Lightwave Technology, IEEE Photonics Journal, Chinese Optics Letters. He was also a TPC member of IEEE/CIC International Conference on Communications in China (ICCC).

Title: Spectral analysis and imaging technology based on multimode fiber

Abstract: Because of the inter-mode interference in multi-mode optical fibers, different modes propagate at different phase velocities and then mottle spots with complex spatial distribution are generated in the exit face. These mottle spots are sensitive to external environment and independent with frequency. Changes in frequency will cause decorrelation of the mode spots, which is called frequency space mapping. Based on this frequency space mapping of multi-mode optical fibers, we do a series of research on multimode fiber spectrometer, radio spectrum analysis and imaging system.