40 GHz broadband optical receiver combining a multimode waveguide photodiode flip-chip mounted on a GaAs-based HEMT distributed amplifier

Abstract

A 40 GHz bandwidth, 1.55 /spl mu/m wavelength photoreceiver for high-speed digital and microwave-via-fiber applications is presented. The photoreceiver consists of a GaInAs/AlGaInAs/AlInAs multimode waveguide photodiode flip-chip bonded on GaAs-based pseudomorphic HEMT distributed amplifier. The overall conversion gain is as high as 167 V/W.