Erlangen 2018 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 38: Poster: Quantum Optics and Photonics I
Q 38.20: Poster
Tuesday, March 6, 2018, 16:15–18:15, Orangerie
Qualification of a lasersystem for atom interferometry with Potassium — •Julien Kluge1, Julia Pahl1, Aline N. Dinkelaker1, Christoph Grzeschik1, Markus Krutzik1, Achim Peters1,2, and The QUANTUS Team1,3,4,5,6,7 — 1HU Berlin — 2FBH Berlin — 3U Bremen — 4LU Hannover — 5JGU Mainz — 6U Ulm — 7TU Darmstadt
The QUANTUS-2 experiment is a testbed for dual-species atom interferometry in microgravity with potassium and rubidium inside a drop tower. While the rubidium system is already running and performing in atom-chip based BEC experiments, the potassium subsystem is coming towards its final assembly and integration.
In this poster, we present the controling mechanisms for the potassium laser system. This includes the software for the hardware communication to regulate multiple experimental parameters and handling of incoming and outgoing data streams. One main feature is a verification of an automated frequency stabilization using atomic spectroscopy for the DFB diode lasers and a evolutionary algorithm-based optimization of TEC feedback parameters.
Furthermore we show verification and qualification tests done on a miniaturized drop tower as well as results gathered in the recent campaigns.
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 50WM1555