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US 5,475,771 AGranted
Polarization splitter haivng an anisotropic optical waveguide
AssigneeNEC Corporation
InventorToru Hosoi
Life of this patent
Estimating the term…
Abstract
A polarization splitter comprises an optical waveguide formed on a substrate and having an S-shaped curve portion, for permitting propagation of two linearly polarized lights orthogonal to each other therethrough, and an anisotropic optical waveguide branching from the beginning of the S-shaped curve portion, into which is guided one of the two linearly polarized lights alone.
Claims2
A polarization splitter comprising:
- an optical waveguide formed on a dielectric substrate and having an S-shaped curve portion, for permitting propagation of a linearly polarized light having electric field components vertical or horizontal to said substrate;
- and
- an anisotropic optical waveguide branching from and formed adjacent to the beginning of said S-shaped curve portion but not overlay said S-shaped curve portion for permitting propagation of one of said components of said linearly polarized light therethrough.
Dependencies are inferred from the claim text.