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Homodyne locking of a squeezer

Heurs, M.; Petersen, I. R.; James, M. R.; Huntington, E. H.


We report on the successful implementation of a new approach to locking the frequencies of an OPO-based squeezed-vacuum source and its driving laser. The technique allows the simultaneous measurement of the phase-shifts induced by a cavity, which may be used for the purposes of frequency-locking, as well as the simultaneous measurement of the sub-quantum-noise-limited (sub-QNL) phase quadrature output of the OPO. The homodyne locking technique is cheap, easy to implement and has the...[Show more]

CollectionsANU Research Publications
Date published: 2009-08-15
Type: Journal article
Source: Optics Letters, 34, 2465, 2009
DOI: 10.1364/OL.34.002465


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