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We investigate the impact of perturbation back-propagation algorithm on distribution of nonlinear noise in 224 Gb/s DP-16QAM transmission over large-Aeff pure silica core fiber and show the distribution approaches to Gaussian by the nonlinear compensation.
Using serial-transmission 112Gb/s PM-16QAM we achieved net SE 7.12 and 6.32 b/s/Hz, and SE(x)distance 13,949 and 23,396 b/s/Hz·km, for 7% and 20.5% FEC overhead, respectively, by means of DAC-enabled spectral engineering, over high-performance PSCF.
We experimentally demonstrated the application in ultrahigh spectral density long-haul optical systems of tight prefiltering to generate “quasi-Nyquist wavelength division multiplexing” signals together with the use of pure-silica core fiber and hybrid Raman/erbium-doped fiber amplification. The transmission of polarization-multiplexed quadrature-amplitude modulation with 8 symbols (PM-8QAM) at 138...
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