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US 5,159,699 AGranted
3D integrated guiding structure
AssigneeThomson-CSF
InventorHumbert de Monts
Life of this patent
Estimating the term…
Abstract
In an optic coupler, two guides made in the thickness of a substrate are located in two distinct planes. They have sinuous configuration so as to have at least one coupling zone perpendicularly to the planes of the guides. Application: optic switching.
Claims12
A 3D integrated guiding structure comprising:
- at least two waveguides nonoverlappingly positioned respectively in a first plane and a second plane, said first and second planes being parallel to one another;
- and possessing at least one coupling zone in which at least a portion of a first guide is positioned above a portion of a second guide.
A guiding structure wherein, outside the portions of the coupling zone, the guides are contained in two planes substantially equidistant to the third plane and perpendicular to the first and second planes.
Dependencies are inferred from the claim text.