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Conference on Lasers and Electro-Optics

Bright Beams of Intensity Difference Squeezed Light for use in Sub-shot-noise Imaging

Rory W. Speirs, Nicholas R. Brewer, Meng-Chang Wu, Paul D. Lett

Published Jan 1, 2019• 0 citations
Publisher

Abstract

We present a method for using bright beams of intensity difference squeezed light to perform sub-shot-noise imaging. The intensity correlated twin beams are generated by four wave mixing in rubidium vapour.
DOI
10.1364/cleo_at.2019.jtu2a.37

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Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text R. W. Spiers, N. R. Brewer, M. Wu, and P. D. Lett, "Towards Sub-shot-noise Imaging using Squeezed Light from Four-Wave Mixing in Rubidium," in Frontiers in Optics / Laser Science, OSA Technical Digest (Optica Publishing Group, 2018), paper JW3A.59. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
We use the quantum correlations of twin-beams of light to probe the added noise when one of the beams propagates through a medium with anomalous dispersion. The experiment is based on two successive four-wave mixing processes in rubidium vapor, which allow for the generation of bright two-mode-squeezed twin-beams followed by a controlled advancement while maintaining the shared quantum-correlations between the beams. The demonstrated effect allows the study of irreversible decoherence in a medium exhibiting anomalous dispersion, and for the first time shows the advancement of a bright nonclassical state of light. The advancement and corresponding degradation of the quantum correlations are found to be operating near the fundamental quantum limit imposed by using a phase-insensitive amplifier.