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
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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