Optical Device
AssigneeNTT, Inc.
InventorsHidetaka Nishi, Shinji Matsuo, Suguru Yamaoka
Life of this patent
Estimating the term…
Abstract
This optical device includes a CSOI optical waveguide including an undercladding layer made of an insulating material with better heat dissipation properties than silicon oxide, and a core made of a compound semiconductor. The core is, for example, a so-called channel type having a rectangular cross-sectional shape. In addition, an overcladding layer is formed on the undercladding layer to cover the core. In addition, a bonding layer is provided between the undercladding layer and the core.
Claims6
An optical device comprising an optical waveguide including a cladding layer made of an insulating material with better heat dissipation properties than silicon oxide, and a core made of a compound semiconductor.
An optical device comprising an optical waveguide including a cladding layer made of a material with a negative ∂n/∂T, which indicates a relationship between a refractive index n and a temperature T, and a core made of a compound semiconductor.
An optical device comprising an optical waveguide including a cladding layer and a core formed on the cladding layer,
- wherein the core includes a first core made of a compound semiconductor and a second core made of a material having a nonlinear optical effect in which ∂n/∂T, which indicates a relationship between a refractive index n and a temperature T, is lower than that of the compound semiconductor.
Dependencies are inferred from the claim text.