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Pre-emphasis performance improvement of OFDM-UWB signals transmitted over FTTH networks using directly modulated lasers

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4 Author(s)
A. P. Morgado José ; Group of Research on Optical Fibre Telecommunication Systems, Instituto de Telecomunicagòes, DEEC, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal ; Daniel Fonseca ; Tiago Alves ; V. T. Cartaxo Adolfo

This paper assesses, experimentally, the performance improvement achieved by pre-emphasis of orthogonal frequency-division multiplexing (OFDM) ultra-wideband (UWB) radio signals transmitted over standard single-mode fiber, using a commercially available low-cost directly modulated laser. Stable improvements along the time of the error-vector-magnitude, exceeding 3 dB, are reported for distances exceeding 50 km, for the OFDM-UWB sub-band centered on 3.43 GHz.

Published in:

Photonics Global Conference (PGC), 2010

Date of Conference:

14-16 Dec. 2010