Hybrid integrated electro-optical modulator of the pockels effect type

A Pockels-effect electro-optical modulator including a light guide having a core made of an inorganic amorphous material, and on which a structure is superposed that is made up of two electrode-forming layers between which an electro-optical polymer is interposed, said structure being superposed directly on the material of the core of the light guide, said modulator being characterized in that it includes a layer of cladding-forming material which extends over the core material on either side of the structure comprising the two electrode-forming layers and the electro-optical polymer, and which, in the vicinity of said structure, has transition zones in which its thickness decreases down to the electrode superposed on the core material, the electro-optical polymer covering said cladding-forming material in the transition zones defined in this way.