Unrepeatered 80 Gbit/s RZ single channel transmission over 160 km of standard fibre at 1.55 /spl mu/m with large wavelength tolerance

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