Semiconductor device comprising an integrated optical guide, which has at least one rectilinear part and one curved part
First Claim
1. A semiconductor device, comprising:
- an integrated optical guide, which has at least one rectilinear part and one curved part, and means for confining light in the guide in the curved part, the means for confining comprisinga groove provided along an edge of the guide in the region of the curved part,a guiding layer and, overlying said guiding layer, a guiding ribbon in relief for determining the optical path followed by the light in the guiding layer, andthe groove having a constant depth, a central part which exactly follows the edge of the guiding ribbon in the curved part, ends which diverge from the edge of said ribbon at the beginning and at the end of the curved part, and a bottom disposed in the guiding layer at a level which does not reach the lower part of said guiding layer.
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Accused Products
Abstract
A semiconductor device comprising an integrated optical guide, which has at least one rectilinear part and one curved part, and comprising means for obtaining the confinement of the light in the guide in the curved part, which means include a groove provided along the edge of the guide in the region of the curve part, characterized in that these means also include a guide structure comprising a guiding layer and, overhanging the guiding layer, a ribbon in relief for determining the optical path followed by the light in the guiding layer, and in that these means moreover include a groove structure such that it has a constant depth, that its central part follows extactly the edge of the guiding ribbon in the curved part, that its ends are removing from the edge of this ribbon at the beginning and at the end of the curved part, that its bottom is disposed in the guiding layer at a level which does not reach the lower part of this guiding layer.
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Citations
22 Claims
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1. A semiconductor device, comprising:
- an integrated optical guide, which has at least one rectilinear part and one curved part, and means for confining light in the guide in the curved part, the means for confining comprising
a groove provided along an edge of the guide in the region of the curved part, a guiding layer and, overlying said guiding layer, a guiding ribbon in relief for determining the optical path followed by the light in the guiding layer, and the groove having a constant depth, a central part which exactly follows the edge of the guiding ribbon in the curved part, ends which diverge from the edge of said ribbon at the beginning and at the end of the curved part, and a bottom disposed in the guiding layer at a level which does not reach the lower part of said guiding layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
- an integrated optical guide, which has at least one rectilinear part and one curved part, and means for confining light in the guide in the curved part, the means for confining comprising
Specification