OPTICAL MODULATOR
First Claim
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.
1 Assignment
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Accused Products
Abstract
The present invention provides an optical modulator, which can be reduced in size with size reduction of an optical waveguide and electric wiring as compared to a conventional optical modulator. An optical modulator according to an embodiment includes 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 wires provided on the substrate and configured to supply a high-frequency electric signal to the modulation unit. One end portion and another end portion of the optical waveguide are provided on a first end surface, 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 being different from the first end surface.
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Citations
9 Claims
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1. An optical modulator comprising:
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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, wherein one 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 includes a 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, and a third portion extending between the first portion and the second portion in a direction parallel to the first end surface, and the modulation unit is provided at the third portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification