Soliton wavelength-division-multiplexing systems: From numerical design to recirculating loop experiments

The field of transoceanic transmission systems is experiencing an unprecedented growth, at an accelerated rate. To answer to this market demand, new link configurations with increased performance must be designed, and one needs research tools to evaluate and to test these new designs. At this research level, three main complementary tools are available : (a) analytical and basic numerical tools for a deep understanding of propagation effects, as well as for a rough and rapid evaluation of the different link parameters; (b) numerical tools, including the details of the transmission link, for a finer design definition; and (c) experimental tools, in particular those based on recirculating loops, for validation of the configurations; After briefly introducing the concept of optical soliton propagation in dispersion-managed transmission systems, the combined exploitation of these tools is described. As a case study, we consider the wavelength-division-multiplexing transmission of 8 channels at 10Gbit/s over transoceanic distance. Detailed numerical and experimental results are compared and discussed.