MAP-tele Seminar Series onTelecommunications: "Wireless Over Fiber Systems Based on 1.55 µm Directly Modulated VCSELs"

November 13th, at 10.30 a.m., room I025

The MAP-tele Seminar Series on Telecommunications is organized by the MAP-tele Doctoral Programme, and is a part of the (MAP-tele) Seminar course, DEEC, FEUP. You are all welcome to attend the MAP-tele Seminar series on Telecommunications! Abstract: Radio-over-fiber technology, used in the transport of radio signals over optical fiber by means of an optical carrier between a remote site and a central node of a cellular network, is an attractive solution for backhauling of a large number of remote antennas, enabling the shifting of the hardware complexity from base stations to a central station. Integration of both optical and wireless broadband infrastructures into the same backhaul network leads to significant simplification and cost reduction of base stations permitting equipment sharing and dynamic allocation of resources, which in turn leads to simplifiedystem operation and maintenance. Wireless systems on the other hand are evolving rapidly and new standards are appearing, such as the Long-Term Evolution aiming at satisfying the required need for increasing bandwidth. Radio-over-fiber systems are known to be susceptible to noise and non-linear distortion in particular to the large peak-to-average power ratio of orthogonal frequency division multiplexing signals employed in these standards. In this work we compare, experimentally and through simulation, the performance of orthogonal frequency division multiplexing and single carrier frequency division multiple access signals, in radio-over-fiber applications, using directly modulated VCSELs. Short Biography: Henrique M. Salgado graduated in Applied Physics (Optics and Electronics) from the University of Porto in 1985 and received the PhD degree in Electronic Engineering and Computer Systems from University of Wales in 1993. He joined the Department of Electrical Engineering and Computers of the University of Porto in 1999 as an Invited Assistant Professor and in 2003 he became Associate Professor. Since 1995 that he heads the Optical Communications and Microwaves Group at INESC TEC, begin responsible for several national and internationally funded (EU) research projects. From 1997-1999 he was Research Fellow at the Department of Electrical and Electronic Engineering of the University College London, UK and previously Research Assistant at the School of Electronic Engineering and Computer Systems, Bangor, UK. He is the author and co-author of numerous international publications in the field of optical fibre communications and microwaves. His current research interests include: radio-over-fiber technology and microwave photonics, digital equalization in coherent optical systems, all-optical networks, modeling of nonlinearities and design of compact multiband antennas. He is a member of the Photonics and Communications societies of the IEEE. :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Disclose your events and projects by e-mail noticias@fe.up.pt. Find out more about our services in SICC site.