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We demonstrated 4-channel high level QAM-DMT transmission over 20-km SMF-28 with real-time reception. 58.72-Gb/s 256QAM-DMT and 56.4-Gb/s 128QAM-DMT signal transmission within 25-GHz grid is achieved with the BER under 2.4×10−2 and real-time reception.
In this paper, we investigate the digital backward propagation (DBP) nonlinear compensation (NLC) based on the modified logarithmic step size distribution. Different from regular constant step size, we use the logarithmic non-constant step size distribution in DBP. The compensation performance is investigated with Nyquist wavelength division multiplexing (NWDM) system. The modified logarithmic step...
For the first time, we propose and demonstrate a novel parallel and Interlaced bandwidth allocation scheme in all-optical sub-banding WDM-OFDM PON system. By simulation, we successfully realize three dimensional resource allocation flexibly among optical network Unites (ONUs).
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