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

Author

Morgado, J.A.P. ; Fonseca, Daniel ; Alves, Tiago ; Cartaxo, Adolfo V. T.

Author_Institution

Group of Res. on Opt. Fibre Telecommun. Syst., Inst. de Telecomunicagoes, Lisbon, Portugal

fYear

2010

fDate

14-16 Dec. 2010

Firstpage

1

Lastpage

5

Abstract

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.

Keywords

OFDM modulation; optical fibre amplifiers; optical fibre subscriber loops; ultra wideband communication; FTTH networks; OFDM-UWB signal; directly modulated laser; fiber-to-the-home networks; orthogonal frequency-division multiplexing; preemphasis performance improvement; single-mode fiber; ultra-wideband radio signal; Bandwidth; Modulation; Noise; Optical attenuators; Optical noise; Optical receivers; Optical transmitters; Directly modulated lasers; modulation index; next generation fiber-to-the-home networks; orthogonal frequency-division multiplexing; pre-emphasis; ultra-wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Global Conference (PGC), 2010

Conference_Location

Singapore

Print_ISBN

978-1-4244-9882-6

Type

conf

DOI

10.1109/PGC.2010.5706078

Filename

5706078