A Monolithically Integrated Optical Receiver with Spatially Modulated Light Detector in CMOS Technology

摘要

A monolithically integrated optical receiver with spatially modulated light (SML) detector in an unmodified 0.18μm CMOS technology is presented. The SML-detector exhibits high bandwidth by canceling out the diffusion component and suppressing the slow diffusion tail effect. The receiver comprises a zero-pole cancellation configuration preamplifier stage and a differential amplifier stage. With behavior model of SML-detector, the detector and receiver are simulated and designed simultaneously under a universal circuit simulation environment. Simulation results show that OEIC has bandwidth of 4.5GHz and transimpedance gain of 58 dBΩ.