“…Recently, data transmission over 150 km at 340 Gbit/s by a 17-channel wavelength domain-multiplexing system [2] and over 200 km at 100 Gbit/s by a conversional intensity modulated direct detection system [3] has been realised providing the linear regime of passing the bit carrier pulses has been used. At the same time, data transmission over 225 km at 160 Gbit/s [4] and over 10 6 km at 10 Gbit/s [5,6] has been demonstrated using optical solitons. The last-named examples suggest that the rate-length product per a single channel of a soliton transmission system could be done much higher in comparison with the same value in a single channel of a linear system.…”