UPGRADING THE EMBEDDED STANDARD-FIBER NETWORK BY OPTICAL-PHASE CONJUGATION

It has been demonstrated that signal distortions arising from the inte rplay of linear dispersion and fibre nonlinearity can be annihilated c ompletely in a system incorporating a midway optical-phase conjugator by requiring perfect power symmetry and vanishing second-order dispers ion. The authors present a detailed numerical analysis for upgrading t he embedded standard single-mode fibre system to ultrahigh capacities beyond 10 Gbit/s. It is shown that, as long as the fibre-input power i s adjusted to the amplifier spacing according to simple formalism, a n early data-rate-independent transmission over the anomalous-dispersive standard fibre is achievable.