Wavefront synthesizer systems
US-9223086-B2 · Dec 29, 2015 · US
Electro-optic device
US2020310216A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020310216-A1 |
| Application number | US-202016832784-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 27, 2020 |
| Priority date | Mar 29, 2019 |
| Publication date | Oct 1, 2020 |
| Grant date | — |
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- Title
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Abstract
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An electro-optic device is provided with a substrate, an optical waveguide formed of a lithium niobate film with a ridge shape on the substrate, and an electrode that applies an electric field to the optical waveguide. The optical waveguide includes a first waveguide section provided at least in an electric field application region applied with the electric field and having a thickness of 1 μm or larger and a second waveguide section provided in a region other than the electric field application region and having a thickness of 0.3 μm or larger and less than 1 μm.
First claim
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What is claimed is: 1 . An electro-optic device comprising: a substrate; an optical waveguide formed of a lithium niobate film with a ridge shape on the substrate; and an electrode that applies an electric field to the optical waveguide, wherein the optical waveguide includes a first waveguide section provided at least in an electric field application region applied with the electric field and having a thickness of 1 μm or larger and a second waveguide section provided in a region other than the electric field application region and having a thickness of 0.3 μm or larger and less than 1 μm. 2 . The electro-optic device as claimed in claim 1 , wherein the first waveguide section has a slab part, and the second waveguide section does not have a slab part. 3 . The electro-optic device as claimed in claim 1 , wherein a width of the second waveguide section is smaller than a width of the first waveguide section. 4 . The electro-optic device as claimed in claim 1 , the optical waveguide includes a Mach-Zehnder optical waveguide.
Assignees
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Classifications
Mach-Zehnder type · CPC title
- G02F1/011Primary
in optical waveguides, not otherwise provided for in this subclass · CPC title
LiNbO3, LiTaO3 · CPC title
- G02F1/225Primary
in an optical waveguide structure · CPC title
controlled by a high-frequency electromagnetic component in an electric waveguide structure · CPC title
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- What does patent US2020310216A1 cover?
- An electro-optic device is provided with a substrate, an optical waveguide formed of a lithium niobate film with a ridge shape on the substrate, and an electrode that applies an electric field to the optical waveguide. The optical waveguide includes a first waveguide section provided at least in an electric field application region applied with the electric field and having a thickness of 1 μm …
- Who is the assignee on this patent?
- Tdk Corp, Fujitsu Optical Components Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02F1/011. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Oct 01 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).