Title :
Study on optimum optical pre-filtering condition for highly spectral-efficient ultralong-haul transmission using 40Gbit/s CS-RZ signal and all-Raman repeaters
Author :
Tsuritani, T. ; Morita, I. ; Agata, A. ; Edagawa, N.
Author_Institution :
KDDI R&D Labs. Inc., Saitama, Japan
Abstract :
We have studied the transmission characteristics of optically pre-filtered 32×42.7 Gbit/s CS-RZ signals in 57% and 80% spectral-efficient all-Raman repeatered transmission over > 4000km under various pre-filtering conditions. We found that the advantage of asymmetrical pre-filtering reduced with transmission distance.
Keywords :
Raman spectra; optical filters; optical repeaters; wavelength division multiplexing; 4000 km; 42.7 Gbit/s; all-Raman repeaters; optically pre-filtered 32×42.7 Gbit/s CS-RZ signals transmission characteristics; spectral-efficient ultralong-haul transmission; Light sources; Optical filters; Optical pumping; Optical receivers; Optical signal processing; Q factor; Repeaters; Signal generators; Transmission lines; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communications Conference, 2003. OFC 2003
Print_ISBN :
1-55752-746-6
DOI :
10.1109/OFC.2003.1248479
