Patent ID: 8406585

Claim:
An optical waveguide, comprising: a communication optical waveguide core; and an optical waveguide clad which entirely covers the communication optical waveguide core, in order to transmit communication light between a light-emitting device and a light-receiving device, wherein there is provided a position-aligning light guiding portion for introducing position-aligning light radiated on a terminal of said position-aligning guiding portion into said communication optical waveguide core and for letting said position-aligning light introduced exit from a location to mount said light-emitting device or said light-receiving device, and wherein said position-aligning light guiding portion comprises: a position-aligning optical waveguide core formed in said optical waveguide so that the position-aligning optical waveguide core intersects with said communication optical waveguide core; an optical waveguide clad which entirely covers said position-aligning optical waveguide core; and a position-aligning mirror for reflecting position-aligning light radiated into said position-aligning optical waveguide core.