A device for producing by means of laser energy a plurality of connectionsetween contact elements of respective contact element pairs has a holding arrangement for holding a plurality of optical fibers having respective optical fiber ends. A positioner is provided for positioning the holding arangement and the contact element pairs at a predetermined position relative to one another, at which a respective optical fiber end is associated with a pair of contact elements, the connection surfaces of the contact elements of said pair of contact elements being pressed onto one another by a pressure applied by said optical fiber. Said connecting device additionally comprises a device for compensating different distances between the optical fiber ends and the surfaces of the associated contact element pairs facing said optical fiber ends, in such a way that the connection surfaces of the contact elements are pressed onto one another.