Abstract

The transmission of 20 Gbit/s path-averaged solitons with in-line control is possible over unlimited distances [1]. In such experiments, Kerr nonlinearity is not a limitation but is used to separate the signal from the noise. Unfortunately, this transmission technique does not allow the increase of the bit rate of a single channel to much more than 40 Gbit/s nor the increase of the overall bit rate with help of Wavelength Division Multiplexing (WDM) because of the Four Wave Mixing (FWM) [2]. The other drawback is the incompatibility to the Non Dispersion Shifted Fibre (NDSF) or standard fibre in the terrestrial networks.

© 1998 IEEE