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1-Tb/s (100 x 10 Gb/s) super-dense WDM transmission with 25-GHz channel spacing in the zero-dispersion region employing distributed Raman amplification technology

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7 Author(s)
Suzuki, H. ; NTT Network Innovation Lab., Kanagawa, Japan ; Kani, J.-I. ; Masuda, Hiroji ; Takachio, N.
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We achieve 1 Tb/s (100/spl times/10 Gb/s) super-dense WDM (super DWDM) transmission with 25-GHz channel spacing (0.4 bit/s/Hz spectral efficiency) in the zero-dispersion region over a 4/spl times/80 km dispersion-shifted fiber by employing backward pumped distributed Raman amplification and forward error correction. By adopting bi-directional pumping, we present experimental results showing that the transmission distance is extended approximately threefold to 1040 km.

Published in:

Photonics Technology Letters, IEEE  (Volume:12 ,  Issue: 7 )