Mainz 2026 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 41: Poster – Quantum Technologies II & Laser Technology

Q 41.11: Poster

Wednesday, March 4, 2026, 17:00–19:00, Philo 2. OG

Zerodur-Based Compact Laser and Vacuum Systems — •Bojan Hansen¹, Nora Bidzinski¹, Robin Lelewel¹, Takeshi Matsuyama¹, David Latorre Bastidas², André Wenzlawski², Patrick Windpassinger², Ortwin Hellmig¹, and Klaus Sengstock¹ — ¹Institute for Quantum Physics, University of Hamburg, Germany — ²Institut für Physik, Johannes Gutenberg-Universität Mainz, Germany

Adapting ultra cold atom experiments for portable applications demands strict constraints on size, energy consumption, and environmental resilience. We present a compact, energy-efficient Zerodur-based MOT laser system that employs optical cavities as frequency references not only for fast frequency switching but also for stabilising the cooling and repumping lasers against a laser with an atomic reference. This approach significantly reduces system footprint, enhances energy efficiency, and introduces redundancy and autonomy. Complementing this, we develop a flange-free, ultra-portable Zerodur vacuum chamber operating without an active getter pump. Together, these innovations advance the realisation of robust, compact, and portable quantum devices, potentially fitting within a shoebox-sized form factor.

Keywords: Laser system; Vacuum system; Cold Atom Quantum Technology; Mobile and Portable Platform; Space Technology