| 摘要 |
The present invention relates to an optical waveguide device, and particularly, to a planar optical waveguide device. The optical waveguide device of the present invention comprises: a substrate; a core formed on the substrate, consisting of a main optical path and a branch optical path; cladding made of a material having a refractive index smaller than that of the core, formed on the substrate such that the cladding covers at least both outer transverse sides of the core; and a splitter unit arranged at the branching point of the main optical path, having a refractive index different from that of the core. The splitter unit has a mirror angle for reflecting a portion of incident light from the main optical path in the direction of the branch optical path. |
