Title :
Ultra-long-span 500 km 16×10 Gbit/s WDM unrepeatered transmission using RZ-DPSK format
Author :
Maeda, H. ; Funatsu, G. ; Naka, A.
Author_Institution :
NTT Network Service Syst. Labs., NTT Corp., Kanagawa, Japan
Abstract :
Ultra-long-span 500 km 16×10 Gbit/s WDM unrepeatered transmission without dedicated fibre for remote pumping is successfully demonstrated for the first time. Enabling technologies are the RZ-DPSK format, forward pumped Raman amplification, and second-order backward pumped Raman amplification in combination with enlarged effective area SMF and conventional SMF.
Keywords :
Raman lasers; amplification; differential phase shift keying; optical fibre communication; optical modulation; optical pumping; wavelength division multiplexing; 10 Gbit/s; 160 Gbit/s; 500 km; RZ DPSK; WDM; WDM unrepeatered transmission; enlarged effective area SMF; remote pumping; return-zero differential phase shift keying; second order backward pumped Raman amplification; single mode fibre; wavelength division multiplexing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20056834
