Quantum Correlated Light Beams from NonDegenerate FourWave Mixing in an Atomic Vapor: the D1 and D2 Lines of ^85Rb and ^87Rb

Published

September 3, 2009

Author(s)

Raphael C. Pooser, Alberto M. Marino, Vincent N. Boyer, Kevin M. Jones, Paul D. Lett

Abstract

We present experimental results showing that quantum correlated light can be produced using non-degenerate, off-resonant, four-wave mixing (4WM) on both the D1 (795 nm) and D2 (780 nm) lines of ^85Rb and ^87Rb, extending earlier work on the D1 line of ^85Rb. Using the 4WM process in a hot vapor cell to produce bright twin beams, we characterize the degree of intensity-difference noise reduction below the standard quantum limit for each of the four systems. Although each system approximates a double lambda configuration, differences in details of the actual level structure lead to varying degrees of noise reduction. The observation of quantum correlations on light produced using all four of these systems, regardless of their substructure, suggests that it should be possible to use other systems with similar level structures in order to produce narrow frequency, non-classical beams at a particular wavelength

Citation

Optics Express

Volume

17

Issue

19

Pub Type

Journals

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Keywords

four wave mixing, non-classical light, non-linear optics, quantum noise reduction, squeezing

Citation

Pooser, R. , Marino, A. , Boyer, V. , Jones, K. and Lett, P. (2009), Quantum Correlated Light Beams from NonDegenerate FourWave Mixing in an Atomic Vapor: the D1 and D2 Lines of ^85Rb and ^87Rb, Optics Express, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903150 (Accessed October 24, 2025)