Noise-immune quantum correlations of intense light
Abstract
Lasers with high intensity generally exhibit strong intensity fluctuations far above the shot-noise level. Taming this noise is pivotal to a wide range of applications, both classical and quantum. Here, we demonstrate the creation of intense light with quantum levels of noise even when starting from inputs with large amounts of excess noise. In particular, we demonstrate how intense squeezed light with intensities approaching 0.1 TW/cm^2, but noise at or below the shot noise level, can be produced from noisy inputs associated with high-power amplified laser sources (an overall noise-reduction of 30-fold). Based on a new theory of quantum noise in multimode systems, we show that the ability to generate quantum light from noisy inputs results from multimode quantum correlations, which maximally decouple the output light from the dominant noise channels in the input light. As an example, we demonstrate this effect for femtosecond pulses in nonlinear fibers, but the noise-immune correlations that enable our results are generic to many other nonlinear systems in optics and beyond.
Keywords
Cite
@article{arxiv.2311.05535,
title = {Noise-immune quantum correlations of intense light},
author = {Shiekh Zia Uddin and Nicholas Rivera and Devin Seyler and Jamison Sloan and Yannick Salamin and Charles Roques-Carmes and Shutao Xu and Michelle Sander and Ido Kaminer and Marin Soljacic},
journal= {arXiv preprint arXiv:2311.05535},
year = {2025}
}