Nonlinear waveform reshaping transmission using dispersion decreasing transmission fibre and narrow-band sliding filter

Nonlinear waveform reshaping transmission using dispersion decreasing transmission fibres (DDTFs) and narrow-band sliding filters is numerically analysed. This transmission technique can remove the pulse distortion due to higher order group-velocity dispersion (GVD) and self-phase modulation (SPM) while strongly suppressing the accumulation of timing jitter. The transmission distance is investigated with estimating the SNR, which is obtained from the P factor and timing jitter. The sliding rate and the filter bandwidth are optimized against the DDTF input power to maximise the transmission distance. Numerical results show that more than 5,300 km transmission can be achieved at the bit rate of 80 Gb/s