Abstract: A structure for optically coupling at least one optical conductor to an optical input or output of an optical device includes a carrier, having the optical conductor embedded therein such that the optical conductor has at least one locally bent portion reaching an outer surface of the carrier and forming there at least one optical contact point to which the optical input or output of the device may be coupled. Conductor positioning structure is provided disposed in the carrier, for accurately positioning the conductor in the carrier. Cooperating positioning structure, disposed on the carrier at the surface reached by the bent portion of the conductor, co-operates with corresponding complimentary positioning structure of the optical device.