报告题目：基于克尔光频梳的超快视频图像处理

报 告 人：谭朦曦

报告时间：2023年4月10日上午11：00-12：00

报告地点：北航本部新主楼F-706

摘要：Digital signal processing has become central to many fields, from coherent optical telecommunications where it is used to compensate signal impairments, to video image processing. Image processing in particular is important for observational astronomy, medical diagnosis, autonomous driving, big data and artificial intelligence. Digital signal processing is mainly performed electronically, but new applications, particularly those involving real time video image processing, are creating unprecedented demand for ultrahigh performance, including bandwidth and reduced energy consumption. Here, we demonstrate a photonic digital signal processor operating at 18 Terabits/s and use it to process video signals in real-time. The system processes 400,000 video signals concurrently, performing 34 functions simultaneously that are key to object edge detection, edge enhancement and motion blur. As compared with spatial-light devices used for image processing, our system is not only ultra-high speed but highly reconfigurable and programable, able to perform many different functions without any change to the physical hardware. Our approach based on an integrated Kerr soliton crystal microcomb, openings new avenues for ultrafast robotic vision and machine learning.

报告人简介：

Mengxi (Sim) Tan is a Research Fellow at RMIT University since 2021. She received the B.Eng. degree from Changchun University of Science and Technology in opto-electronic information engineering in 2014 and a M.S. degree in optical engineering in 2017 from Beijing University of Aeronautics and Astronautics, and a Ph.D. degree at the Swinburne University of Technology, Melbourne, VIC, Australia, in 2021. In 2021 she received an IEEE Photonics society graduate student scholarship – one of only 10 awarded worldwide each year. She won the 2021 HDR Woman Research of the Year. Her current research interests include integrated nonlinear optics and high-speed optical signal processing, microwave photonics and optical neuromorphic processing. She is a member of the IEEE Photonics Society and Optica.