Narrow-FSK optical packet labeling scheme for optical ethernet networks

Author

López, A. ; Garcés, I. ; Losada, M.A. ; Martínez, J.J. ; Villafranca, A. ; Lázaro, J.A.

Author_Institution

Zaragoza Univ.

Volume

18

Issue

16

fYear

2006

Firstpage

1696

Lastpage

1698

Abstract

In this work, an intensity modulation/frequency-shift keying (IM/FSK) orthogonal modulation scheme is achieved by direct modulation of a distributed feedback laser source using its adiabatic chirp characteristics. Optical frequencies for "1" and "0" bits are separated only 0.7 GHz, obtaining a narrow-FSK modulation and, accordingly, a low residual intensity modulation. Ethernet frames at 1.25 Gb/s (GbE) are transmitted with a label inserted using coded mark inversion codification at a 155-Mb/s rate. Error rates for the Ethernet payload and for the label have been measured for different payload extinction ratios, showing the viability of this scheme for distances up to 25 km

Keywords

chirp modulation; distributed feedback lasers; frequency shift keying; intensity modulation; optical fibre LAN; optical modulation; 0.7 GHz; 1.25 Gbit/s; 155 Mbit/s; 25 km; Ethernet frames; Ethernet payload; adiabatic chirp; coded mark inversion codification; direct modulation; distributed feedback laser; error rate; intensity modulation; low residual intensity modulation; narrow-frequency-shift keying; optical Ethernet networks; optical frequencies; optical packet labeling; orthogonal modulation; payload extinction ratios; Chirp modulation; Distributed feedback devices; Ethernet networks; Frequency shift keying; Intensity modulation; Labeling; Optical feedback; Optical fiber networks; Optical modulation; Payloads; Frequency-shift keying (FSK) modulation; optical Ethernet; optical networks; packet labeling;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2006.879939

Filename

1664922