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OPTICAL MODULE AND OPTICAL TRANSMITTER

  • US 20150063809A1
  • Filed: 07/07/2014
  • Published: 03/05/2015
  • Est. Priority Date: 08/29/2013
  • Status: Active Grant
First Claim
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1. An optical module comprising:

  • a waveguide substrate having an optical waveguide and multiple electrodes causing electronic signals to be applied to the optical waveguide;

    a relay substrate disposed adjacently to the waveguide substrate; and

    a termination substrate disposed adjacently to the waveguide substrate on a side opposite to the relay substrate and thereby, sandwiching the waveguide substrate therebetween, whereinthe electrodes respectively have a first wiring portion connected from the relay substrate through the waveguide substrate to the termination substrate and a second wiring portion extending from the first wiring portion and branching on the termination substrate,in the second wiring portion, one branched wiring portion has a capacitor and a termination resistor, and another branched wiring portion is extended through a bias resistor to a DC electrode on the relay substrate, andthe second wiring portion is divided into a first group extending in a first direction along the optical waveguide and a second group extending in a direction opposite to the first direction.

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