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Q: Fachverband Quantenoptik und Photonik

Q 25: Poster – Cold Atoms and Molecules, Matter Waves (joint session Q/A/MO)

Q 25.64: Poster

Tuesday, March 11, 2025, 14:00–16:00, Tent

Ground Support for the BECCAL Laser System for Cold Atom Experiments onboard the ISS — •Hamish Beck¹, Hrudya Thaivalappil Sunilkumar¹, Marc Kitzmann¹, Matthias Schoch¹, Christoph Weise¹, Bastian Leykauf¹, Evgeny Kovalchuk¹, Jakob Pohl¹, Achim Peters¹, and the BECCAL Collaboration^{1,2,3,4,5,6,7,8,9,10} — ¹HUB, Berlin — ²FBH, Berlin — ³JGU, Mainz — ⁴LUH, Hanover — ⁵DLR-SI, Hanover — ⁶DLR-QT, Ulm — ⁷UULM, Ulm — ⁸ZARM, Bremen — ⁹DLR, Bremen — ¹⁰DLR-SC, Braunschweig

The Bose-Einstein Condensate and Cold Atom Laboratory (BECCAL) is designed for operation onboard the International Space Station (ISS). This multi-user facility will enable experiments with K and Rb ultra-cold atoms and BECs in mircogravity. Fundamental physics will be explored at longer time- and lower energy-scales compared to those achieved on earth.

The BECCAL laser system is comprised of micro-integrated diode lasers, miniaturized free-space optics on Zerodur boards, and a system of fibres to bring light to the physics package. The design is subject to strict size, weight, and power (SWaP) constraints, and the operation of the system is supported by extensive ground-based systems.

The ground-based systems built for validation and testing will be presented alongside the design of the flight model.

This work is supported by the DLR with funds provided by the BMWK under grant number 50WP2102.

Keywords: BEC; BECCAL; ISS; Laser Systems