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25 GHz spacing ultra-dense WDM transmission experiment of 1 Tbit/s (100 WDM×10 Gbit/s) over 7300 km using non pre-chirped RZ format

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6 Author(s)
Y. Yamada ; KDD Submarine Cable Syst., Tokyo, Japan ; S. -I. Nakagawa ; K. Takashina ; T. Kawazawa
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1 Tbit/s (100 WDM×10 Gbit/s) transmission over 7300 km with 25 GHz (0.2 nm) channel separation has been achieved using a non pre-chirped RZ format signal. The ultra-narrow channel spacing of 0.2 nm was adopted to fully utilise the bandwidth of the long-distance erbium-doped fibre amplifier chain. As a result, error-free transmission is possible using forward error correction

Published in:

Electronics Letters  (Volume:35 ,  Issue: 25 )