Title :
Single-span transmission of WDM RZ-DPSK signal over 310-km standard SMF without using FEC and remote-pumping
Author :
Mo, Jinyu ; Zhou, Guangtao ; Chen, Jian ; Wen, Yang Jing ; Wang, Yixin ; Lu, Chao ; Xu, Kun
Author_Institution :
Lightwave Div., Inst. for Infocomm Res., Singapore, Singapore
Abstract :
To avoid significant stimulated Brillouin scattering (SBS) generation in a bidirectional Raman-pumped long single-span transmission system, the SBS threshold is studied in both return-to-zero on-off -keying (RZ-OOK) and RZ differential phase-shift keying (DPSK) systems. It shows that SBS threshold in an RZ-DPSK system is more than 10 dB higher than that in an RZ-OOK system, and SBS reflection is dominated by copumping, while counterpumping has minor effect. Error-free eight-channel single-span transmission is demonstrated over 310-km standard single-mode fiber using RZ-DPSK format and bidirectional Raman pumping, without applying forward-error correction and remote-pumping techniques.
Keywords :
amplitude shift keying; differential phase shift keying; optical fibre communication; optical modulation; optical pumping; stimulated Brillouin scattering; telecommunication channels; wavelength division multiplexing; 310 km; RZ differential phase-shift keying; RZ-OOK system; SBS reflection; WDM RZ-DPSK signal; bidirectional Raman-pumping; copumping; counterpumping; return-to-zero ON-OFF-keying; single-span transmission; standard SMF; stimulated Brillouin scattering; Brillouin scattering; Differential quadrature phase shift keying; Distributed feedback devices; Forward error correction; Optical fiber cables; Optical fibers; Optical noise; Signal to noise ratio; Stimulated emission; Wavelength division multiplexing; Differential phase-shift-keying (DPSK); Raman amplification; stimulated brillouin scattering (SBS); wavelength-division multiplexing (WDM);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856338
