Distributed amplifier (DC–40 GHz) for high-speed optical communications

A novel n-stage distributed amplifier architecture for high-speed optical links is reported. The circuit topology is based on specific refinements necessitated by the photoreceiver application. A three-stage (DC-40 GHz) monolithic microwave integrated circuit amplifier was manufactured in a 0.25/spl mu/m AlGaAs/GaAs pHEMT process at the UMS foundry and integrated in a photoreceiver module.