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1.6 Tbit/s (40×42.7 Gbit/s) WDM transmission over 2400 km of fibre with 100 km dispersion-managed spans

1.6 Tbit/s (40×42.7 Gbit/s) WDM transmission over 2400 km of fibre with 100 km dispersion-managed spans

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Transmission of 40×42.7 Gbit/s WDM channels is demonstrated over 2400 km of fibre with 100 km amplifier spacing and 100 GHz channel spacing. Dispersion-managed fibre spans, carrier-suppressed return-to-zero modulation format and hybrid Raman/erbium-doped fibre inline amplifiers were employed to achieve a record 40 Gbit/s, WDM transmission distance with 100 km terrestrial span lengths.

Inspec keywords: wavelength division multiplexing; optical fibre communication; Raman lasers; fibre lasers; optical communication equipment; optical fibre dispersion

Other keywords: channel spacing; amplifier spacing; terrestrial span lengths; WDM transmission; 2400 km; dispersion-managed spans; 1.6 Tbit/s; hybrid Raman/erbium-doped fibre inline amplifiers; carrier-suppressed return-to-zero modulation; transmission distance

Subjects: Optical communication equipment; Multiplexing and switching in optical communication; Fibre lasers and amplifiers

References

    1. 1)
      • Dwivedi, V.: `Value of reach extension in long-distance networks', NFOEC'2000, II, p. 351.
    2. 2)
    3. 3)
      • Zhu, B.: `3.08 Tbit/s (77×42.7 Gb/s) WDM transmission over 1200 km fibre with 100 km repeater spacing using dual-C- and L- and hybrid Raman/erbium-doped inline amplifiers', PD23, OFC'2001, Anaheim, CA, USA.
    4. 4)
      • Hainberger, R.: `Optimum span configuration of Raman-amplified dispersion-managed fibers', M15, OFC'2001, Anaheim, CA, USA.
    5. 5)
      • Doerr, C.R.: `Automatic wavelength channel-by-channel equalizer', PD20, OFC'2000, Baltimore, MD, USA.
    6. 6)
      • Tanaka, T.: `2.1-Tbit/s WDM transmission over 7,221 km with 80-km repeater spacing', PD1.8, ECOC'2000, Munich, Germany.
    7. 7)
      • Bigo, S.: `Transmission of 125 WDM channels at 42.7 Gbit/s (5 Tbit/s capacity) over 12×100 km of teralight ultra fiber', PD.M.1.1, ECOC'2001, Amsterdam, The Netherlands.
    8. 8)
      • Cai, J.: `2.4 Tb/s (120×20 Gb/s) transmission over transoceanic distance using optimum FEC overhead and 48% spectral efficiency', PD20, OFC'2001, Anaheim, CA, USA.
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