Erlangen 2022 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 60: Quantum Information II
Q 60.23: Poster
Thursday, March 17, 2022, 16:30–18:30, P
Portable warm vapor memory — •Martin Jutisz1, Mustafa Gündoğan1, Elisa Da Ros1, Markus Krutzik1, Janik Wolters2,3, and Leon Meßner1,3 — 1Humboldt-Universität zu Berlin, Berlin, Germany — 2Technische Universität Berlin, Berlin, Germany — 3Deutsches Zentrum für Luft- und Raumfahrt, Berlin, Germany
Warm vapor memories have seen significant progress in terms of efficiency and storage time in recent years. Their low complexity makes them a promising candidate for operation in non-lab environments including space-based applications. As necessary element of quantum repeaters, memories operating in space could advance global quantum communication networks [1].
We will present the overall design and status of a portable system with an emphasis on the miniaturized laser system. The implementation of the optical memory is based on electromagnetically induced transparency on the Cesium D1 line at 895nm. A distributed Bragg reflector laser is frequency stabilized by saturated absorption technique. Automated locking is realized via a FPGA-based tool for laser frequency stabilization.
This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number 50RP2090.
[1] M. Gündoğan et. al., npj Quantum Information 7, 128 (2021)