University of Hamburg
Typical laser systems for cold atom experiments in the laboratory usually have a footprint of several square meters. A miniaturized laser system is the key towards portable and versatile cold atom application. This challenging task is tackled by the “Integrated Laser System” work package. Its goal is to develop a technology platform combining integrated optics and miniaturized high power narrow linewidth diode laser modules on optical microbenches. As the work package leader, the University Hamburg will integrate the splitting module and the individual laser modules developed by our project partners to yield a robust, fully functional laser system capable of preparing and manipulating ultracold quantum gases. To this end, we will further extend our existing expertise on designing highly stable laser systems and fiber coupling techniques based on low expansion materials.
Furthermore, the University Hamburg will lay the foundations to broaden the iSense platform to include further species apart from Rubidium. In particular, we will evaluate Ytterbium regarding its potential application as a frequency standard and in quantum information. For that purpose, we are setting up an experimental apparatus for cooling and trapping of Ytterbium. Once operating, we will focus our experimental efforts on the measurement of important physical parameters, in particular s-wave scattering lengths, for interferometric applications.