A method for the preparation of an optical waveguide device characterized in that it comprises a first step for forming a first resin film on a substrate provided thereon with a lower clad layer; a second step for patterning the first resin film into a shape of an optical waveguide to thus form a core...http://www.google.fr/patents/US7200313?utm_source=gb-gplus-shareBrevet US7200313 - Method for the preparation of optical waveguide devices and optical waveguide devices
Method for the preparation of optical waveguide devices and optical ...
