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US 11,448,839 B2Granted
Optical connection structure
AssigneeNippon Telegraph and Telephone Corporation
InventorsJun Endo, Kota Shikama, Atsushi Aratake
Life of this patent
Estimating the term…
Abstract
A first adhesive layer is provided to be in contact with an SSC. A second adhesive layer is provided to be in contact with an optical fiber. A lens structure is on an interface between the first adhesive layer and the second adhesive layer.
Claims14
An optical connection structure comprising:
- a plurality of adhesive layers that are arranged in a propagation direction of light from a first optical waveguide to a second optical waveguide, wherein the optical connection structure couples the first optical waveguide to the second optical waveguide, wherein a mode field of the first optical waveguide is different than a mode field of the second optical waveguide, wherein the plurality of adhesive layers comprise a first adhesive layer and a second adhesive layer;
- and
- a first lens structure on an interface between a first surface of the first adhesive layer and a second surface of the second adhesive layer, wherein the first adhesive layer, the first lens structure, and the second adhesive layer have a same refractive index.
A method of providing an optical connection structure, the method comprising:
- arranging a plurality of adhesive layers in a propagation direction of light from a first optical waveguide to a second optical waveguide, wherein the optical connection structure couples the first optical waveguide to the second optical waveguide, wherein a mode field of the first optical waveguide is different than a mode field of the second optical waveguide, wherein the plurality of adhesive layers comprise a first adhesive layer and a second adhesive layer;
- and
- disposing a first lens structure on an interface between a first surface of the first adhesive layer and a second surface of the second adhesive layer, wherein the first adhesive layer, the first lens structure, and the second adhesive layer have a same refractive index.
Dependencies are inferred from the claim text.