Patent ID: 8811830

Claim:
A multi-channel optical waveguide receiver comprising: an optical input port; an optical branching unit optically coupled to the optical input port; a plurality of light-receiving elements optically coupled to the optical branching unit, each of the light-receiving elements having a bias electrode and a signal electrode; a plurality of optical waveguides, each of the optical waveguides being optically coupled between the optical branching unit and the light-receiving element; a plurality of capacitors electrically connected between the bias electrodes of the light-receiving elements and a reference potential, the capacitors and the bias electrodes being connected through interconnection patterns, respectively; and a signal amplifier amplifying electrical signal output from the light-receiving element, the signal amplifier including a plurality of input electrodes, wherein the optical branching unit, the light-receiving elements, the optical waveguides, and the capacitors are formed on a single substrate, the substrate having an edge extending in a first direction, the signal amplifier and the substrate are arranged in a second direction crossing the first direction, the edge of the substrate and the signal amplifier being opposed to each other; the input electrodes of the signal amplifier and the signal electrodes of the light-receiving elements are arranged along the edge of the substrate; each of the signal electrodes of the light-receiving elements is electrically connected through a bonding wire to the input electrode of the signal amplifier.