Title :
8 times 2.5 Gbit/s WDM transmission over 6000 km using a directly modulated DFB laser
Author :
Letellier, V. ; Gautheron, O. ; Bassier, G. ; Grandpierre, G. ; Brandon, E.
Author_Institution :
Centre de Villarceaux, Alcatel Submarine Networks, La Ville du Bois, France
Abstract :
The use of directly modulated DFB lasers for 8/spl times/2.5 Gbit/s WDM systems has been demonstrated over a 6000 km straight line test-bed. The influence of the transmitter spectral width has been investigated on a 8/spl times/2.5 Gbit/s WDM 6000 km straight-line test-bed. The measurements show that, even with a 10 GHz polarisation scrambling induced spectral broadening, the penalty is kept below 1 dB. In agreement with these results, the transmission of a directly modulated DFB laser has been successfully demonstrated.
Keywords :
distributed feedback lasers; electro-optical modulation; light polarisation; optical fibre communication; optical transmitters; semiconductor lasers; spectral line breadth; wavelength division multiplexing; 10 GHz; 2.5 Gbit/s; 20 Gbit/s; 6000 km; GHz polarisation scrambling induced spectral broadening; Gbit/s WDM transmission; directly modulated DFB laser; directly modulated DFB lasers; transmitter spectral width;
Conference_Titel :
Optical Communication, 1996. ECOC '96. 22nd European Conference on
Conference_Location :
Oslo, Norway
Print_ISBN :
82-423-0418-1
