Abstract: The invention relates to a method of producing a device for coupling an optical waveguide end section accommodated in a cylindrical plug pin to an optical component accommodated in a socket, the plug pin having a collar which limits the insertion depth. The method of producing a coupling device utilized is very simple, requires only simple means, involves a small number of production steps and ensures highly reproducible results. In the method, the optical component is fastened in the socket at a distance, which is determined by means of a first gage, from an external stop surface and, by means of a second gage, the distance of a stop sleeve stop surface facing the plug pin front face is set to a predetermined distance and the stop sleeve is fitted to the plug pin at this predetermined distance.