Unrepeatered 80 Gbit/s RZ single channeltransmission over 160 km of standard fibreat 1.55 µm with large wavelength tolerance

Unrepeatered 80 Gbit/s RZ single channel transmission over 160 km of standard singlemode fibre at 1.55 µm involving the use of passive compensation of the dispersion and dispersion-slope is reported. Error-free transmission (BER = 10-9) with a receiver sensitivity of –22 dBm and a wavelength tolerance of 10 nm has been achieved.