p-i-n /f.e.t. hybrid optical receiver for longer-wavelength optical communication systems

Preliminary results are reported on the first GaInAs p-i-n/f.e.t. hybrid optical receiver for longer-wavelength optical communication systems. The GaInAs photodiode has a capacitance of 0.3 pF and quantum efficiency of 25%, and gives a receiver sensitivity for a 140 Mbit/s n.r.z. system at 1.24 μm of −40.7 dBm for a 10−9 error rate.