Title :
Improved NRZ transmission distance at 20 Gbit/s using dual electroabsorption modulated laser
Author :
Kechaou, Khalil ; Anfray, Thomas ; Merghem, K. ; Aupetit-Berthelemot, C. ; Aubin, Guy ; Kazmierski, C. ; Jany, C. ; Chanclou, Philippe ; Erasme, Didier
Author_Institution :
TELECOM Inst., TELECOM ParisTech, Paris, France
Abstract :
An error-free 39.7 km transmission for a 20 Gbit/s NRZ signal in standard dispersion fibre without dispersion compensation is carried out both experimentally and by simulation using the dual electroabsorption modulated laser (D-EML). The D-EML comprises an integrated electroabsorption modulated laser with dual independent-access modulation. Its ability to adjust the laser and modulator chirp by controlling the amplitude modulation leads to transmission distance enhancement with lower power consumption, cost and device complexity.
Keywords :
amplitude modulation; chirp modulation; electro-optical modulation; electroabsorption; optical fibre dispersion; NRZ transmission distance; amplitude modulation; bit rate 20 Gbit/s; distance 39.7 km; dual electroabsorption modulated laser; dual independent-access modulation; laser chirp; modulator chirp; standard dispersion fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.4063
