Abstract
We measure the complete quantum state for six modes of the electromagnetic field produced by an optical parametric oscillator. The investigation involves the sidebands of the intense pump, signal, and idler fields generated by stimulated parametric down-conversion inside a triply resonant optical resonator. We develop a theoretical model to successfully interpret the experimental results. The model takes into account the coupling of the field modes to the phonon bath of the nonlinear crystal, clearly showing the roles of different physical effects in shaping the structure of the quantum correlations between the six optical modes.
- Received 6 March 2018
DOI:https://doi.org/10.1103/PhysRevA.98.023823
©2018 American Physical Society
Physics Subject Headings (PhySH)
Synopsis
A Sextet of Entangled Laser Modes
Published 13 August 2018
Researchers have entangled six modes of a laser cavity—a record number for such a device.
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