Abstract

Single-channel optical transmission at 10 Gbit/s up to 253 km of standard singlemode fibre (SMF) has been demonstrated, using the method of dispersion supported transmission (DST) [1]. However, in a recent DST experiment at 20 Gbit/s, the link length was reduced to 53 km SMF [2], as expected from the principle of dispersion supported transmission [1]. One solution for high capacity DST on long spans of SMF is the optical transmission of wavelength division multiplexed (WDM) 10 Gbit/s channels. In [3], we have discussed the impact of single and double cavity Fabry-Perot demultiplexers on the performance of dispersion supported transmission of two WDM 10Gbit/s channels separated 1nm. Nevertheless, to reduce the differences on the system performance due to a different value of fibre dispersion at the wavelength assigned to each channel, narrow channel spacings are required.

© 1996 IEEE