| 摘要 |
A method for producing a light conductor structure having a pair of light conductors embedded in a substrate of an electro-optical material and having an electrode arranged between the light conductors, which structure is particularly adapted to be used as an electrically controllable coupler, characterized by providing a substrate, applying electrodes to the desired surface area of the substrate, and then producing the light conductors by doping the substrate utilizing the electrodes as a doping mask. Preferably, the electrodes are applied by covering the entire surface of the substrate with the metal layer or with an adhesive layer followed by a metal layer, applying a photo lacquer layer on the metal layer, exposing the photo lacquer layer with an appropriate mask, developing the photo lacquer layer to expose portions of the metal layer in the areas where the electrodes are not desired, etching the exposed portions of the metal layer and the underlying adhesive layer to expose surface areas of the substrate in the area where the light conductors are to be formed. |
