Abstract
Methods for estimation of the maximum transmission length of the DWDM signals in single-span lines with different configurations are proposed. A transponder that works at a bit rate of 100 Gb/s using the dual-polarization quadrature phase-shift keying (DP-QPSK) is used as an example to present the maximum lengths of the single-span lines with different configurations. The estimations are used to experimentally demonstrate that a transceiver with the above modulation and coherent detection and soft-decision forward error correction (SoftFEC) and an ultralow-loss fiber make it possible to reach a transmission length of greater than 500 km for the DWDM signals at a channel bit rate of 100 Gb/s.
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Gainov, V.V., Gurkin, N.V., Lukinykh, S.N. et al. Ultralong single-span lines with remote pumping of optical amplifiers. Tech. Phys. 60, 561–567 (2015). https://doi.org/10.1134/S1063784215040106
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DOI: https://doi.org/10.1134/S1063784215040106