PRODUCTION OF OPTICAL WAVEGUIDE SYSTEM AND OPTICAL DEVICE USING THE SYSTEM

PURPOSE: To provide a method for automatically forming a waveguide, refractive index distribution or optical coupling by light incidence and a device obtd. by the method. CONSTITUTION: An optical refractive index material 2 is irradiated with light of a wavelength at which its refractive index changes or a photosensitive material is irradiated with light of a wavelength at which its refractive index changes and the material is insolubilized to form the waveguide 3, refractive index distribution or optical coupling by using a self-focus effect. The optical refractive index materials are otherwise arranged in the whole or a part among the plural optical devices and these optical refractive index materials are irradiated with the light of the wavelength at which their refractive indices change from the one or plural optical devices or the photosensitive materials are arranged in the whole or a part among the plural optical devices and these photosensitive materials are irradiated with the light of the wavelength at which their refractive indices change and the materials are insolubilized from the one or plural optical devices, by which the waveguides or the optical couplings are formed and the optical coupling among the optical devices is executed.