Optical waveguide device and optical waveguide module
First Claim
1. An optical waveguide device comprising:
- a substrate;
one or more first waveguides arranged on said substrate;
a plurality of second waveguides arranged on said substrate; and
a slab waveguide arranged on said substrate to connect said first waveguides and said second waveguides,wherein said second waveguides are provided with a plurality of waveguide paths for connecting said second waveguides respectively at the region close to said slab waveguide; and
width of each of said waveguide paths is constant and the width of separation gap between said adjacent waveguide paths progressively increases as it becomes further away from said slab waveguide.
1 Assignment
0 Petitions
Accused Products
Abstract
An object of the present invention is to provide an optical waveguide device and an optical waveguide module having the function to multiplex/demultiplex or couple/decouple optical signals and particularly to provide an optical waveguide device and an optical waveguide module for realizing low optical loss, reducing wavelength dependence and ensuring easier shape management in the manufacturing and inspection processes. The optical waveguide device and optical waveguide module are provided with a substrate, one or more first waveguides, a plurality of second waveguides, and a slab waveguide for connecting the first waveguides and the second waveguides. At a region where the second waveguides are connected to the slab waveguide, a plurality of waveguide paths are provided for respectively connecting the second waveguides. Width of the waveguide paths is constant. The width of the separation gap between waveguide paths progressively increases as it becomes further away from the slab waveguide.
29 Citations
24 Claims
-
1. An optical waveguide device comprising:
-
a substrate; one or more first waveguides arranged on said substrate; a plurality of second waveguides arranged on said substrate; and a slab waveguide arranged on said substrate to connect said first waveguides and said second waveguides, wherein said second waveguides are provided with a plurality of waveguide paths for connecting said second waveguides respectively at the region close to said slab waveguide; and width of each of said waveguide paths is constant and the width of separation gap between said adjacent waveguide paths progressively increases as it becomes further away from said slab waveguide. - View Dependent Claims (7, 19)
-
-
2. An optical waveguide device comprising:
-
a substrate; one or more first waveguides arranged on said substrate; a plurality of second waveguides arranged on said substrate; and a slab waveguide arranged on said substrate to connect said first waveguides and said second waveguides; wherein said second waveguides are provided, at the region close to said slab waveguide, with a plurality of waveguide paths for connecting said second waveguides respectively; and width of each of said waveguide paths is constant and the period in arrangement interval of said waveguide paths progressively increases as it becomes further away from said slab waveguide. - View Dependent Claims (3, 4, 5, 6, 8, 20)
-
-
9. An optical waveguide device comprising:
-
a substrate; one or more first waveguides arranged on said substrate; a channel waveguide array arranged on said substrate with a plurality of waveguides and formed so that length of each waveguide sequentially becomes longer with the predetermined difference in the length of waveguides; a plurality of second waveguides arranged on said substrate; a first slab waveguide arranged on said substrate to connect said first waveguides and said channel waveguide array; and a second slab waveguide arranged on said substrate to connect said channel waveguide array and said second waveguides, wherein said channel waveguide array is provided with a plurality of waveguide paths for connecting waveguides of said channel waveguide array respectively at least one of the regions close to said first slab waveguide and said second slab waveguide, and width of each of said waveguide paths is constant and width of separation gap between said adjacent waveguide paths progressively increases as it becomes further away from said slab waveguide of the side arranged said waveguide paths. - View Dependent Claims (15, 17, 21, 23)
-
-
10. An optical waveguide device comprising:
-
a substrate; one or more first waveguides arranged on said substrate; a channel waveguide array arranged on said substrate with a plurality of waveguides and formed so that length of each waveguide sequentially becomes longer with the predetermined difference in the length of waveguides; a plurality of second waveguides arranged on said substrate; a first slab waveguide arranged on said substrate to connect said first waveguides and said channel waveguide array; and a second slab waveguide arranged on said substrate to connect said channel waveguide array and said second waveguides, wherein said channel waveguide array is provided with a plurality waveguide paths for connecting waveguides of said channel waveguide array respectively at least one of the regions close to said first slab waveguide and said second slab waveguide; and width of each of said waveguide paths is constant and period in arrangement interval of said waveguide paths progressively increases as it becomes further away from said slab waveguide of the side arranged said waveguide paths. - View Dependent Claims (11, 12, 13, 14, 16, 18, 22, 24)
-
Specification