| 摘要 |
PURPOSE:To enable high-accuracy alignment by using a light source having such a wavelength range that an optical function element becomes transparent, guiding light to the optical functioning element and monitoring the rate of optical coupling with an optical waveguide directly. CONSTITUTION:When the optical function element 8 is mounted in the gap for mounting the optical function element 8, etc., which is provided between optical waveguides 71 and 72 formed on a substrate 7, the light source which outputs light in the wavelength range which is transmitted through the optical function element 8 is used. Its output light is inputted to the optical function element 8 through the optical waveguides 71 and 72 and the output light of the optical waveguide 72 which is passed through the optical function element 8 is aligned and fix the optical function element 8 where the intensity of the output light of the optical waveguide 72 is maximum. Consequently, the positioning accuracy is improved, the need to lead an electrode out of the optical function element, and the complexity at the time of hybrid integration is reduced. |
