A Nonlinear Compensation Scheme Based on Inverse Scattering Transform in Normal-Dispersion Optical Fiber

In an optical fiber, in addition to wavelength dispersion, signal distortion due to fiber nonlinearity becomes prominent because of the increase in the intensity of the incident signal light caused by the improvement of frequency utilization efficiency. On the other hand, a method based on the inverse scattering transform (IST) has been proposed as a compensation scheme for waveform distortion caused by the anomalous dispersion and nonlinearity in an optical fiber. In this paper, we propose a nonlinear compensation scheme based on IST to compensate for waveform distortion due to normal dispersion and nonlinearity, and show its effectiveness through numerical simulations.