RF and noise characterization of a monolithically integrated receiver on InP

Abstract

A comprehensive characterization of an optoelectronic integrated circuit (OEIC) receiver that uses an optical waveguide is given. Bias dependent signal and noise measurements show that the gain-bandwidth product increases from 1.4 GHz at zero bias operation to 2.7 GHz at the optimum bias voltages. The receiver input noise is dominated by the JFET channel noise. Using an equivalent circuit model for the receiver, agreement between the calculated and the measured data was found. From the measured input noise, an optical sensitivity of -29 dBm was evaluated at a bit rate of 576 Mb/s (BER=10/sup -9/).<>