Speaker: Bin Wang

Affiliation: Beijing Institute of Technology

Academic title: Assistant Professor

Abstract:

In recent years, microwave waveforms with a wide bandwidth and low phase noise are increasingly required in modern high-resolution radar systems. Conventionally, microwave signals are generated using electronical devices such as voltage-controlled oscillators or direct digital synthesizers. These electrical systems have a simple structure, but suffer from a limited bandwidth, high phase noise, and high spurs, which restricts their applications in high-performance radar systems. To address this problem, modern photonic technology is studied and numerous photonic-assisted approaches have been proposed to generate high-quality and wideband radar signals. Wherein, the optoelectronic oscillator (OEO) is considered an attractive candidate to generate microwave signals with high frequency and ultra-low phase noise. In this talk, we report our recent progress on photonics-assisted generation of wideband and low-phase-noise radar waveforms based on several new kinds of OEO systems, including the Fourier-domain mode-locked OEO, the injection-locked OEO, the active mode-locked OEO, and the silicon photonic integrated OEO.

Biography:

Bin Wang received the B.E. degree in communication engineering from Huazhong University of Science and Technology, Hubei, China, in 2014 and the Ph.D. degree in electronic science and technology from Shanghai Jiao Tong University, Shanghai, China, 2020. From September 2018 to September 2019, he was a joint training PhD student with the University of Ottawa, Ottawa, ON, Canada. In May 2020, he joined the School of Information and Electronics, Beijing Institute of Technology, Beijing, China, as an Assistant Professor. His current research interests include integrated microwave photonic chips and microwave photonic radar systems. In recent years, he has published more than 20 SCI academic papers in Optics Letters, Optics Express, IEEE/Optica Journal of Lightwave Technology and other journals. He was awarded as the best paper award of Asia Communications and Photonics Conference (ACP) 2019 and International Conference on Advanced Infocomm Technology (ICAIT) 2022.