A wideband optical receiver has been designed and fabricated. The gain
with respect to 50 Omega is 12dB from 2 to 20GHz, and the noise spect
ral density is a maximum of 10pA/root Hz between 6 and 18GHz. The nois
e, gain and flatness performances of this GaAs MMIC-based receiver mat
ch the equivalent achieved experimentally using highly optimised discr
ete components, but using a manufacturable process.