In the group of Prof. Dr. Arno Rauschenbeutel, a new atom-light interface is implemented to work as an optical fiber-component for quantum information processing and communication. The key ingredient of this interface is an optical nanofiber, a fiber with a sub-wavelength diameter, that is used to trap and interface cold atoms with guided light in the fiber. The goal of this experiment is to trap Cesium atoms along the fiber to yield suitable optical densities for many quantum protocols such as quantum memories (OD - 100 to 300). One crucial requirement for stable trapping is precise control over the local polarization of the nanofiber-guided light fields, as well as the characterization of the atomic cloud used to load the nanofiber trap. For this, fluorescence imaging of the nanofiber and absorption imaging of the magneto-optically trapped atom-cloud was implemented to characterize and optimize the cooling and loading of atoms into the dipole trap. The imaging system allows for determining the position and shape of the cloud, measuring the temperature of the atoms, and adjusting the polarization of the trapping light.