PIN-bipolar optical receiver using a high-frequency high-beta transistor

Abstract

A PIN-photodiode bipolar-transistor optical receiver for the 1.1–1.6 μm wavelength range capable of operation up to 320 Mbit/s is described. Low input capacitance and high DC transistor current gain are shown to be important in achieving good sensitivity, and these factors are emphasised in the design of the receiver and the devices used. Error-rate measurements show a receiver sensitivity of −34.5 dBm at 280 Mbit/s.