Hybrid squeezing of solitonic resonant radiation in photonic crystal fibers

TL;DR

This paper introduces a new hybrid squeezing phenomenon in photonic crystal fibers, occurring when solitons emit resonant radiation near zero dispersion, leading to quantum noise reduction below shot noise levels.

Contribution

It reveals a novel hybrid squeezing mechanism in photonic crystal fibers involving soliton-induced resonant radiation, bridging known squeezing types.

Findings

Hybrid squeezing occurs near zero group velocity dispersion points.

Quantum noise is predicted to be reduced below shot noise levels.

Strong photon correlations are induced by classical solitons.

Abstract

We report on the existence of a novel kind of squeezing in photonic crystal fibers which is conceptually intermediate between the four-wave mixing induced squeezing, in which all the participant waves are monochromatic waves, and the self-phase modulation induced squeezing for a single pulse in a coherent state. This hybrid squeezing occurs when an arbitrary short soliton emits quasi-monochromatic resonant radiation near a zero group velocity dispersion point of the fiber. Photons around the resonant frequency become strongly correlated due to the presence of the classical soliton, and a reduction of the quantum noise below the shot noise level is predicted.