Qlibri’s fiber-based Fabry–Pérot Microcavity Platform enables precise light–matter coupling at the quantum level. As the only commercially available system of its kind, it combines a concave fiber mirror with a planar mirror holding the sample, allowing full three-dimensional tuning and picometer length stability. This makes it possible to study and control solid-state quantum emitters such as color centers, quantum dots, and rare-earth ions with exceptional precision.In collaboration with Montana Instruments and QD Germany, the platform was integrated into a Cryostation® S200 optical cryostat for operation at temperatures below 10 K. Using active stabilization and optimized mechanical design, vibration levels below 2 pm RMS were achieved—enabling stable cavity finesse values above 10⁵. The system supports long-term, automated measurements and provides an accessible route to quantum-optical experiments under cryogenic conditions.This integration demonstrates how Qlibri’s Microcavity Platform transforms complex laboratory setups into robust, turnkey tools for quantum optics, materials research, and scalable photonic technologies.
