A novel technique for increasing the spectral efficiency of millimetre-wave
fibre-radio systems by employing wavelength interleaving in conjunction wi
th optical single sideband modulation. is proposed and demonstrated. The te
chnique has been demonstrated experimentally by employing a wavelength inte
rleaved optical add-drop multiplexer and transmission of a 155 Mbit/s BPSK
signal at 36 GHz over 20 km of fibre.