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AssigneeNippon Telegraph and Telephone Corporation
InventorsYoshie Morimoto, Kenya Suzuki, Osamu Moriwaki, Yu Kurata
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An optical waveguide component is configured to have a dual structure in which a core region of the first optical waveguide is contained within the core region of the second optical waveguide in a cross-section perpendicular to the length direction of the optical waveguide. The refractive index of a first material of the core of the first optical waveguide is greater than a refractive index of a second material of the core of a second optical waveguide. The refractive index of a second material constituting the core of a second optical waveguide is greater than a refractive index of a third material constituting cladding of the second optical waveguide. The center height of the core of the first optical waveguide and the center height of the core of the second optical waveguide are aligned, which solves connectivity problems caused by worsened butt coupling efficiency, and incomplete adiabatic coupling in an SSC structure of prior art.
An optical waveguide component, in which an optical waveguide having a different mode field diameter (MFD) is formed on a substrate, an optical waveguide component comprising:
A method for manufacturing an optical waveguide component including a first optical waveguide and a second optical waveguide having a different mode field diameter (MFD), a method for manufacturing an optical waveguide component comprising:
Dependencies are inferred from the claim text.