"Millimeter and Terahertz Wave Wireless Communications powered by Light Engines"

Dr. Guilllermo Carpintero-del-Barrio, Associate Professor at the Electronics Technology Department of Carlos III University of Madrid (UC3M)

May 23rd (Monday), 11:00am
Engineering Science Building (ESB), Room 2001

photo of Guillermo Carpintero Photonic Integrated Circuits (PICs) are key enablers for the development of “light engines”, photonic systems on a chip for specific functionalities in which photonics outperform electronics, keeping a chip form factor. Photonics-based technologies are leading the access to high frequency ranges, within the millimeter (30 to 300 GHz) and terahertz (300 GHz to 3 THz) bands. To date, multiple photonic techniques have been proposed for the generation of signals within these frequency bands with different performance in terms of the maximum frequency that can be generated, the frequency tuning range and the stability. An additional advantage of the use of photonics technologies is to enable the distribution of high-frequency RF signals over long distances using optical fibers, an extremely interesting feature that can ultimately allow for the convergence of wired (fiber-optic) and wireless communication networks, with a seamless integration in terms of data rates and modulation formats.

The presentation will cover different approaches using Photonic Integrated Circuits, with emphasis on either the full integration of all the transmitter components on a chip or the use of Generic Photonic Integration Technology Platforms, through Multi-Project Wafer runs. We will discuss the performance of different light engines which were designed to implement the most common signal generation techniques, optical heterodyne and mode-locked pulsed sources. Using these components we have achieved real-time error-free wireless data transmission of uncompressed HDTV signal over one meter. We will discuss a novel approach using a dual wavelength source for optical heterodyning based on hybrid integration of active InP elements and thermo-optically tunable polymer waveguide structures, having a tuning range over 20 nm, enabling the generation of signals from tenths of GHz up to several THz with MHz resolution.

About Dr. Guilllermo Carpintero-del-Barrio:

Guillermo Carpintero is Associate Professor at the Electronics Technology Department of Carlos III University of Madrid (UC3M). He received the Telecommunication Engineering degree from the Telecommunication Engineers School at Polytechnic University of Madrid (UPM) and the PhD from UC3M, receiving an Extraordinary Doctoral Award. Since December 2013 is Director of the Graduate School of Engineering and Basic Sciences of UC3M. Has established a research line at UC3M on Photonic Integrated Circuits (PIC), exploring the development of photonic integrated light engines (integrated optical systems on a chip) for various fields of applications. This research involves numerous international collaborations, having been visiting researcher at the Centre for Advanced Photonics and Electronics (CAPE) at the University of Cambridge, a Visiting Professor at University College London where he spent a sabbatical, and currently is Research Fellow at Osaka University, Japan.

Hosted by: Professor John Bowers