Wade, AndrewChua, Sheon S YStefszky, Michael SShaddock, Daniel AMcClelland, David E2016-05-102016-05-100146-9592http://hdl.handle.net/1885/101200We 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.We acknowledge the support of the Australian Research Council.© 2013 Optical Society of AmericaKeywords: Frequency-shifting; Induced noise; Modulation techniques; Noise immunity; Path length; Scattering source; Shot-noise level; Squeezed state; Scattering; Modulation2013-07-0110.1364/OL.38.0022652016-06-14