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US 2023/0056833 A1Published application
Optical device and optical communication apparatus
AssigneeFujitsu Optical Components Limited
InventorMasaki SUGIYAMA
Life of this patent
Estimating the term…
Abstract
An optical device includes an optical waveguide that is a rib type and that is formed of a thin film lithium niobate (LiNbO3: LN) substrate using a thin film LN crystal, and a buffer layer that is laminated on the optical waveguide. Furthermore, the optical device includes an electrode that is laminated on the buffer layer and that applies a voltage to the optical waveguide, and a gettering site that is disposed parallel to the optical waveguide and that traps an electric charge inside the optical waveguide.
Claims11
An optical device comprising:
- an optical waveguide that is a rib type and that is formed of a thin film lithium niobate (LiNbO3:
- LN) substrate using a thin film LN crystal;
- a buffer layer that is laminated on the optical waveguide;
- an electrode that is laminated on the buffer layer and that applies a voltage to the optical waveguide;
- and
- a gettering site that is disposed parallel to the optical waveguide and that traps an electric charge inside the optical waveguide.
3 more elements
An optical communication apparatus comprising:
- a processor that executes signal processing on an electrical signal;
- a light source that emits light;
- and
- an optical device that modulates, by using the electrical signal output from the processor, the light emitted from the light source, wherein
- the optical device includes
- an optical waveguide that is a rib type and that is formed of a thin film lithium niobate (LiNbO3:
- LN) substrate using a thin film LN crystal;
- a buffer layer that is laminated on the optical waveguide;
- an electrode that is laminated on the buffer layer and that applies a voltage to the optical waveguide;
- and
- a gettering site that is disposed parallel to the optical waveguide and that traps an electric charge inside the optical waveguide.
8 more elements
Dependencies are inferred from the claim text.