Path length modulation technique for scatter noise immunity in squeezing measurements
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Wade, Andrew; Chua, Sheon S Y; Stefszky, Michael S; Shaddock, Daniel A; McClelland, David E
Description
We present a technique for frequency shifting scattering induced noise on squeezed light beams, providing immunity from scattered light while preserving the squeezed states. Using a 500 Hz pre and postsqueezing apparatus path length modulation, we show up to a 20 dB reduction in scattering induced noise while recovering squeezing measurement below the shot noise level. Such a technique offers immunity to spurious scattering sources without the need for optically lossy isolation optics.
Collections | ANU Research Publications |
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Date published: | 2013-07-01 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/101200 |
Source: | Optics letters |
DOI: | 10.1364/OL.38.002265 |
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