Design, structural stability, and performance of a cesium magneto-optical trap with large optical access using...

Cold atoms form the backbone of many quantum technology applications, including quantum computation, sensing, and networking. These experiments require a robust cold atom source, precise control of beam parameters, and large optical access. We demonstrate a compact cesium magneto-optical trap (MOT) directly loaded from background vapor, with a footprint of 34 × 56 cm2. The quadrupole and compensation coils are mounted on additively manufactured components, eliminating the need for water cooling and minimizing eddy currents, which enables fast magnetic field switching with a measured settling time of 240 μs. Finite element analysis confirms the mechanical robustness and thermal stability of the coil mounts. The MOT achieves 5 × 106 atoms at a density of 109 cm-3, with a temperature of 76 ± 2 μK, demonstrating a reliable and compact platform suitable for quantum technology experiments.