Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 58: Poster: Quantum Optics and Photonics III
Q 58.6: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Atrium Informatik
Compact and stable potassium laser system for dual species atom interferometry in microgravity — •Julia Pahl1, Julien Kluge1, Aline N. Dinkelaker1, Christoph Grzeschik1, Achim Peters1,2, Markus Krutzik1, and The QUANTUS Team1,3,4,5,6,7 — 1HU Berlin — 2FBH Berlin — 3U Bremen — 4LU Hannover — 5JGU Mainz — 6U Ulm — 7TU Darmstadt
QUANTUS-2 is a mobile high-flux BEC source performing atom-chip based Rubidium BEC experiments at the drop tower in Bremen. For future studies of dual-species quantum gases in extended free fall, it is designed to simultaneously operate with Potassium.
This poster presents the laser system architecture for ultracold atom experiments with 41K and 87Rb. Our compact and robust distributed feedback diode laser based system withstands DC accelerations of up to 40 g in operation and temperature changes up to 10 Kelvin with only minor adjustments over several drop campaigns. Micro-integrated master oscillator power amplifier (MOPA) modules in conjunction with miniaturized, tailored, free space opto-mechanics are integrated on a platform with 70 cm diameter. We will further report on the laser system performance, as well as the latest results of qualification tests at the Bremen drop tower.
This project is supported by the German Space Agency DLR with funds provided by the Federal Ministry for Economic Affairs and Energy under grant number DLR 50WM1552-1557.