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OPTICAL MODULATOR

  • US 20170146886A1
  • Filed: 01/26/2017
  • Published: 05/25/2017
  • Est. Priority Date: 08/04/2014
  • Status: Active Grant
First Claim
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1. An optical modulator comprising:

  • a substrate;

    an optical waveguide provided on the substrate and configured to guide light;

    a modulation unit formed of part of the optical waveguide and configured to modulate the light; and

    electric wiring provided on the substrate and configured to supply a high-frequency electric signal to the modulation unit, whereinone end portion and another end portion of the optical waveguide are provided on a first end surface of the substrate,one end portion of the electric wiring is provided along the first end surface,another end portion of the electric wiring is provided along a second end surface of the substrate being different from the first end surface,the optical waveguide includesa first portion extending from the one end portion of the optical waveguide in a direction perpendicular to the first end surface,a second portion extending from the another end portion of the optical waveguide in the direction perpendicular to the first end surface, anda third portion extending between the first portion and the second portion in a direction parallel to the first end surface, andthe modulation unit is provided at the third portion.

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