An MID module with a plug-type connector for an optical fibre with an upper face, edge faces and a lower face, comprising an accommodating channel surrounded by walls for the accommodation of an optical fibre. Here the diameter of the accommodation channel essentially corresponds to that of the optical fibre. The MID module further comprises a semiconductor chip, which is arranged on a front face of the accommodating channel. The semiconductor chip comprises an optically active region, which is optically accessible from the accommodation channel. A slot is provided in the walls of the MID module for the accommodation of a locking element. A locking element, introducible into the slot, locks the fibre in the accommodating channel.