Optical Circuit and Optical Connection Structure

An optical connection structure for connecting an optical waveguide device and optical fibers, comprising:

• an optical connection part that has guide holes for insertion of core wires of the optical fibers;
• and
• an optical circuit including an alignment optical waveguide that connects an optical waveguide edge face to which the optical connection part is fixed, and a light path changing member configured to change a path of light to a vertical direction with respect to an optical axis direction of a core of the alignment optical waveguide, wherein the alignment optical waveguide is opposed to a guide hole into which an alignment optical fiber is to be inserted, and optical alignment of the optical connection part is performed.

An optical connection structure for connecting an optical waveguide device and optical fibers, wherein, on an optical waveguide edge face to which an optical connection part having guide holes for insertion of core wires of the optical fibers is fixed, an alignment optical waveguide that connects the optical waveguide edge face and a light path changing member configured to change a path of light to a vertical direction with respect to an optical axis direction of a core of the alignment optical waveguide is opposed to a guide hole into which an alignment optical fiber is to be inserted, and optical alignment of the optical connection part is performed, and thereby the optical connection part is fixed to the optical waveguide device.