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Digitally enhanced homodyne interferometry

Sutton, Andrew J; Gerberding, Oliver; Heinzel, Gerhard; Shaddock, Daniel A


We present two variations of a novel interferometry technique capable of simultaneously measuring multiple targets with high sensitivity. The technique performs a homodyne phase measurement by application of a four point phase shifting algorithm, with pseudo-random switching between points to allow multiplexed measurement based upon propagation delay alone. By multiplexing measurements and shifting complexity into signal processing, both variants realise significant complexity reductions over...[Show more]

CollectionsANU Research Publications
Date published: 2012-09-24
Type: Journal article
Source: Optics express
DOI: 10.1364/OE.20.022195


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