In my talk, I provide a brief introduction to photodiode fundamentals, considerations of material systems and basic structures. I present state-of-the-art 145 GHz-waveguide photodiodes and high-power photodetector arrays that have been successfully operated at bitrates as high as 160 Gbit/s and discuss the development of an integrated dual-polarization coherent receiver that has become a key component in today’s 100 Gbit/s and emerging 400 Gbit/s fiber optic links. I cover novel device structures and photodiode arrays that enabled photonic generation of highly linear microwave signals at record-high output power levels. This includes heterogeneously integrated InP-based photodiodes on silicon that achieved the highest saturation current-bandwidth products on a silicon photonics platform to date.
Bio: Dr. Andreas Beling received the Dipl.-Phys. degree (M.S.) in physics from the University of Bonn, Germany, in 2000 and the Dr.-Ing. degree (Ph.D.) in electrical engineering from Technical University Berlin, Germany, in 2006. He was a staff scientist in the photonics division at the Heinrich-Hertz-Institut in Berlin in 2001-2006, a Research Associate in the Department of Electrical and Computer Engineering at the University of Virginia in 2006-2008, and has two years of industry experience as a project manager working on optoelectronic receivers for high-speed fiber optic communication systems. He returned to University of Virginia in late 2010 as a Research Scientist and became Assistant Professor in the Department of Electrical and Computer Engineering at U.Va in 2013. His research interests include high-speed photodiodes, photonic integration technologies, and optoelectronic receivers for digital communications. Andreas Beling has authored or co-authored more than 100 technical papers, two book chapters, and three patents. He is a member of the IEEE Photonics Society and the Optical Society of America.