Title :
Investigation of the dependence of non-linear interference on the number of WDM channels in coherent optical networks
Author :
Pastorelli, R. ; Bosco, Gabriella ; Carena, Andrea ; Poggiolini, Pierluigi ; Curri, Vittorio ; Piciaccia, S. ; Forghieri, Fabrizio
Author_Institution :
Cisco Photonics Italy srl, Monza, Italy
Abstract :
We experimentally investigate nonlinearity impact in a multi-span uncompensated coherent optical system, transmitting, in the 50GHz grid, Nch×100G CP-DQPSK channels, varying Nch from 3 to 71. A good agreement was found with an analytical model, confirming the progressive growth of interference with Nch. Impacts on network design are evaluated.
Keywords :
light coherence; light interference; optical fibre networks; optical modulation; quadrature phase shift keying; telecommunication channels; wavelength division multiplexing; CP-DQPSK channels; WDM channels; coherent optical networks; frequency 500 GHz; multispan uncompensated coherent optical system; network design; nonlinear interference; Analytical models; Bit error rate; Optical fiber networks; Optical fibers; Optical noise; Signal to noise ratio; Wavelength division multiplexing;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
