A monolithically integrated photoreceiver using an InAlAs/InGaAs HBT-b
ased transimpedance amplifier has been fabricated and characterized. T
he p-i-n photodiode is implemented using the base-collector junction o
f the HBT. The 5 mum x 5 mum emitter area transistors have self-aligne
d base metal and non-alloyed Ti/Pt/Au contacts. Discrete transistors d
emonstrated f(T) and f(max) of 54 GHz and 51 GHz, respectively. The am
plifier demonstrated a -3 dB transimpedance bandwidth of 10 GHz and a
gain of 40 dBOMEGA. The integrated photoreceiver with a 10 mum x 10 mu
m p-i-n photodiode showed a -3 dB bandwidth of 7.1 GHz.