Large Polarization Squeezing in Non-Degenerate Parametric Amplification of Coherent Radiation

TL;DR

This paper demonstrates significant polarization squeezing in non-degenerate parametric amplification of coherent light, achieving over 86% squeezing at certain interaction times, with implications for experimental realization.

Contribution

It shows that polarization squeezing can be maximized in non-degenerate parametric amplification, providing specific interaction times and initial conditions for optimal squeezing.

Findings

Polarization squeezing up to 98.2% at T=2

Maximum squeezing of 86.4% at T=1

Initial conditions involve equal amplitudes in two modes

Abstract

Polarization squeezing is shown to occur in non-degenerate parametric amplification of coherent light and the degree of squeezing at interaction time $T$ can be as large as $1-e^{-2T}$. This gives $86.4\%$ polarization squeezing for $T=1$ and $98.2\%$ for $T=2$. One simple case when this occurs is on taking initially plane polarized light having equal amplitudes in the two modes that finally has equal intensities of two circular polarizations. This suggest the experimental settings of parameters to achieve this extent of polarization squeezing in coherent light.