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Q: Fachverband Quantenoptik und Photonik

Q 60: Materiewellen und Technologie

Q 60.2: Vortrag

Freitag, 16. März 2012, 10:45–11:00, V53.01

Advanced laser systems for matter-wave interferometry in microgravity — •Christoph Grzeschik¹, Achim Peters¹, and the QUANTUS Team^{1,2,3,4,5,6,7,8,9,10} — ¹Institut für Physik, HU Berlin — ²Institut für Quantenoptik, LU Hannover — ³Institut für Laserphysik, Uni Hamburg — ⁴ZARM, Uni Bremen — ⁵Institut für Quantenphysik, Uni Ulm — ⁶MPQ, München — ⁷Institut für angewandte Physik, TU Darmstadt — ⁸Midlands Ultracold Atom Research Centre, University of Birmingham, UK — ⁹FBH, Berlin — ¹⁰DLR Institut für Raumfahrtsysteme, Bremen

We present a robust and compact laser system for dual-species atom interferometry with rubidium and potassium in microgravity in the context of the QUANTUS and LASUS project. The system is built around a set of hybrid-integrated master oscillator power amplifiers (MOPA), which allow for outputpower in the Watt range, while preserving the spectral characterisics of the DFB laser diode. Results from several catapult launches at the ZARM droptower in Bremen showing the stability of the frequency locks and fiber coupling efficiencies as well as the ruggedness of the complete system will be presented. Finally, an outlook on even more sophisticated lasersystems for missions in a sounding rocket within the MAIUS project as well as perspectives for fundamental physics in space will be given.

The QUANTUS and LASUS project are supported by the German Space Agency DLR with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number (DLR 50WM 1131-1137, 0937-0940).