Application of analysis methods for ring resonator characteristics to simulating soliton fiber-optic communication lines

We propose a new approach to simulating fiber-optic communication lines (FOCLs) using an amplifier model as a section of active fiber with saturated gain and a nonuniform spectrum, and report the development of an algorithm for constructing a train of dissipative solitons with a phase-shift keying (PSK) modulation format for transmitting data over FOCLs. By establishing periodic dynamics of the parameters of carrier pulses in the amplification section, it is possible to transmit signals over long distances without reducing efficiency. The stability of this approach to adding amplifier noise is demonstrated.