Past events

Silicon Photonics – Emerging Devices and Applications

Prof Hon Ki Tsang, Dept. of Electronic Engineering, The Chinese University of Hong Kong, Hong Kong, *Currently Visiting Fellow at Clare Hall, Cambridge

Abstract

Silicon photonics has emerged since the start of this century to become one of the mainstream platforms for photonic integration. It has found commercial applications in telecommunications and photonic integrated circuits for optical interconnects in data centers, and there are emerging potential applications of silicon photonics as energy efficient on-chip optical interconnects in high performance computing and in mid-infrared spectroscopy.

This talk describes some of our recent research on silicon photonic devices, including hyperuniform disordered photonic bandgap structures for integrated polarizers and the hybrid integration of graphene on silicon waveguides. Some recent results on high-speed mode division multiplexing in silicon interconnects will also be presented.

Refreshments will be served and the lecture will be followed by opportunities for questions.

The event is open to all staff and students within the University who share research interests in these areas.

Short biography

Hon Ki Tsang was awarded a Ph.D. in 1991 from the University of Cambridge. From 1991-1993 he was a SERC Postdoctoral Fellow at the University of Bath. He joined the Chinese University of Hong Kong (CUHK) in 1993 as a lecturer. He became a professor at the Chinese University of Hong Kong in 2003. During 2002-03 he took a break from academic work to manage the development of the silicon four channel array electronic variable optical attenuator at Bookham Technology plc. He was Chairman of the Department of Electronic Engineering, CUHK from 2010-2016. He is now Director of the Center for Advanced Research in Photonics at CUHK and is currently taking a sabbatical at Cambridge University.

Hon Tsang has published over 350 papers in journals or conference proceedings. His recent research interests are in silicon photonics and waveguide components for communication applications, graphene on silicon photonics and on-chip mode division multiplexing, and integrated quantum optics. He is currently an associate editor of OSA/CLP’s Photonics Research and an editor for Nature Publishing Group’s Microsystem and Nanoengineering.