Quantum Dispersive Waves and Multimode Squeezing in Pure-Kerr Parametrically Driven Cavity Solitons

TL;DR

This paper presents the first multimode quantum analysis of pure-Kerr parametric cavity solitons, revealing significant squeezing and novel quantum dispersive waves, advancing quantum optics and nonlinear dynamics research.

Contribution

It introduces a new quantum description of pure-Kerr PDCS, demonstrating multimode squeezing and quantum dispersive waves, with implications for quantum noise reduction.

Findings

Verified single- and two-mode squeezing in the below threshold regime.

Discovered quantum dispersive waves analogous to soliton Cherenkov radiation.

Achieved up to 20 dB of squeezing limited by system losses.

Abstract

Parametrically driven cavity solitons (PDCS), unlike single-pumped cavity solitons, are localized optical pulses arising from parametric processes. These cavity solitons, recently discovered in pure-Kerr media, offer great promise for nonlinear dynamics studies and metrology. Here, we present the first multimode quantum description of pure-Kerr PDCS. In the below threshold regime, we verify single- and two-mode squeezing, while above threshold we uncover novel "quantum" dispersive waves - the quantum analog of soliton Cherenkov radiation. Besides revealing these unexplored quantum properties, we show that PDCS generates up to 20 dB of squeezing, only limited by overcoupling and intrinsic losses for experimentally routine parameters. We therefore provide a pathway to observe strong multimode quantum noise reduction in these systems.