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Feedback control of an atom laser

Dall, Robert; Dedman, Colin J; Truscott, Andrew


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.

CollectionsANU Research Publications
Date published: 2008-09-04
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.16.014716


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