Extended path-averaged soliton regime in highly dispersive fibers.
It is shown that solitons can survive the large temporal broadening induced by a propagation over many dispersion lengths. The propagation requires large excess power and specific conditions of the dispersion map.
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France Télécom, Centre Nationale d'Etudes en Télecommunication LAB/DTD/TSO, 22307 Lannion, France.