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Compact and robust diode laser system technology for dual-species ultracold atom experiments with rubidium and potassium in microgravity

J. Pahl1, A.N. Dinkelaker1,2, C. Grzeschik1, J. Kluge1, M. Schiemangk1,2, A. Wicht1,2, A. Peters1,2, and M. Krutzik1,2

Published in:

Appl. Opt., vol. 58, no. 20, pp. 5456-5464 (2019).


We present a compact and robust distributed-feedback diode laser system architecture for ultracold atom experiments with 41K and 87Rb in a mobile setup operating at the ZARM drop tower in Bremen. Our system withstands DC accelerations of up to 43 g in operation with only minor adjustments over several drop campaigns. Micro-integrated master-oscillator-power-amplifier modules in conjunction with miniaturized, free-space optomechanics are integrated on a platform with a volume of 43 L. With compact control and driver electronics, this laser system features output power and spectral characteristics suitable for 2D+ and 3D magneto-optical trapping operation, atomic state preparation, Bragg-diffraction-based atom interferometry, and detection.

1 Institut für Physik, Humboldt-Universität zu Berlin, Newtonstraße 15, 12489 Berlin, Germany
2 Ferdinand-Braun-Institut, Leibniz Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany

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