Journal
OPTICS EXPRESS
Volume 16, Issue 19, Pages 14716-14722Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.16.014716
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- Australian Research Council Centre of Excellence for Quantum-Atom Optics
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We report the first real-time feedback control of an atom laser. The unique feature of metastable helium atoms, the production of ions in the atom laser outcoupling process, is exploited to actively control the spatial location inside the Bose- Einstein condensate where outcoupling occurs. Unlike alkali atom lasers, this provides almost instantaneous feedback which reduces frequency, amplitude and spatial mode fluctuations in the atom laser beam. (C) 2008 Optical Society of America.
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