Title :
Comparison of system performance at 50, 62.5 and 100 GHz channel spacing over transoceanic distances at 40 Gbit/s channel rate using RZ-DPSK
Author :
Charlet, G. ; Corbel, E. ; Lazaro, J. ; Klekamp, A. ; Idler, W. ; Dischler, R. ; Bigo, S. ; Tran, P. ; Lopez, T. ; Mardoyan, H. ; Konczykowska, A. ; Thierry, J.-P.
Author_Institution :
Alcatel Res. & Innovation, Marcoussis
Abstract :
Assuming RZ-DPSK format at 40 Gbit/s channel rate, the impact on the Q-factor of a variable channel spacing has been evaluated in five WDM experiments conducted in a recirculating loop over transoceanic distances. A degradation of the Q-factor by nearly 3 dB is observed when the channel spacing is reduced from 100 to 50 GHz
Keywords :
Q-factor; channel spacing; differential phase shift keying; optical fibre communication; wavelength division multiplexing; 100 GHz; 40 Gbit/s; 50 GHz; 62.5 GHz; Q-factor degradation; WDM; channel rate; optical fibre communication; recirculating loop; return-to-zero DPSK; transoceanic distances; variable channel spacing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20057638
