Rostock 2019 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 57: Poster: Quantum Optics and Photonics III
Q 57.2: Poster
Donnerstag, 14. März 2019, 16:15–18:15, S Fobau Physik
Fiber based Raman laser system for atom interferometry — •Matthias Gersemann1, Sven Abend1, Christian Schubert1, Martina Gebbe2, Sven Herrmann2, Claus Lämmerzahl2, Ernst M. Rasel1, and the QUANTUS team1,2,3,4,5,6 — 1Institut für Quantenoptik, LU Hannover — 2ZARM, Uni Bremen — 3Institut für Physik, HU zu Berlin — 4Institut für Quantenphysik, Uni Ulm — 5Institut für Angewandte Physik, TU Darmstadt — 6Institut für Physik, JGU Mainz
Raman atom interferometry is a well proven tool for precise measurements of gravity, rotation, and fundamental constants. Nowadays field applications targeting improved accuracy, reduced complexity and lower instability have shown the necessity to transfer laboratory setups into small and robust devices. We report on the realization of novel a Raman laser system based on established telecom fiber technology allowing for the manipulation of 87Rb atoms to split, redirect and recombine the quantum mechanical wave function. The fiber based setup utilizes electro-optic modulation and frequency doubling. Key techniques of the system are the succesful suppression of undesired electronical (-24 dB) and optical sidebands (-20 dB) which would otherwise induce systematic errors and impair intrinsic signal-to-noise ratio.
This work is supported by the DLR with funds provided by the BMWi under grant no. DLR 50WM1552-1557, the VDI with funds provided by the BMBF under grant no. VDI 13N14838, the DFG in the scope of the SFB 1128 geo-Q and "Niedersächsisches Vorab" through QUANOMET.