Optical waveguide circuit device

Details Optical waveguide circuit device Optical waveguide circuit device

2001-09-19

2004-12-07

Font, Frank G. (Department: 2877)

Optical waveguides

With optical coupler

Particular coupling structure

C385S037000

Reexamination Certificate

active

06829418

ABSTRACT:

BACKGROUND OF THE INVENTION
An optical waveguide circuit device having a waveguide formed from a core such as shown in
FIG. 4
is used in various uses in an optical communication field. This waveguide is generally formed from a silica-based glass on the substrate. In the optical waveguide circuit device of this kind, various functions can be fulfilled by a difference in the waveguide. The substrate of a single crystal such as a silicon substrate, etc. is generally used as the above substrate.
SUMMARY OF THE INVENTION
The present invention provides a novel optical waveguide circuit device. The optical waveguide circuit device of the invention comprises:
a substrate having a cleavage plane;
a waveguide formed from a core on said substrate; and
an incision line constructed by a groove or (and) a separating slit formed by crossing at least one portion of the core of said waveguide;
wherein a face of said incision line is set to a face different from the cleavage plane of said substrate.


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