Localization of optical coupling points

Abstract

The invention relates to a method and to an assembly () for localizing an optical coupling point () and to a method for producing a microstructure () at the optical coupling point (). The method for localizing an optical coupling point () comprises the following steps: a) providing an optical component (), which comprises an optical coupling point (), the optical coupling point having an interaction region () lying outside of a volume encompassed by the optical component (); b) producing optical radiation in a production region (), the production region () overlapping at least partly with the interaction region () of the optical coupling point (), light being applied to a medium () located in the production region (), which light is modified by the medium () in such a way that the optical radiation is thereby produced; c) sensing at least part of the produced optical radiation in a sensing region (), the sensing region () overlapping at least partly with the interaction region () of the optical coupling point (), and determining a spatially resolved distribution of the sensed part of the produced optical radiation; and d) determining the localization of the optical coupling point () from the determined spatially resolved distribution of the sensed part of the produced optical radiation, the optical radiation being produced or at least the part of the produced optical radiation being sensed through the optical coupling point (). The optical coupling point () can thereby be precisely localized with a relative positioning tolerance of better than 1 μm. Thus, low coupling losses of an optical connection to the optical component () can be achieved and microstructures () can be precisely placed at the optical coupling point ().