论文信息 - Impact of fiber nonlinearity on duobinary-QPSK in super-Nyquist WDM transmission

Impact of fiber nonlinearity on duobinary-QPSK in super-Nyquist WDM transmission

We numerically confirm that duobinary-pulse format suffers larger nonlinear impairment than NRZ and Nyquist-pulse formats. Nonlinearity-induced penalty, however, is found to be constant against the channel spacing in super-Nyquist WDM transmission. Also, we evaluate the benefit of digital nonlinear compensation.

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