| 摘要 |
<p>A core of an optical waveguide (13) and a core of a waveguide type optical device (15) are adjacently disposed, and a layer (14) is continuously formed at one end of the core of the waveguide type optical device (15), wherein an effective refractive index of the layer (14) decreases toward a long axis direction of the optical waveguide stripe (13).</p> |
