Brillouin-enhanced four-wave mixing with optical chiral states

Zeng X, Stiller B (2025)

Publication Type: Journal article

Publication year: 2025

Journal

APL Photonics American Institute of Physics (AIP)

Book Volume: 10

Article Number: 076119

Journal Issue: 7

DOI: 10.1063/5.0265616

Abstract

Brillouin-enhanced four-wave mixing (BE-FWM)—also known as Brillouin dynamic gratings—is an important nonlinear effect in photonics that couples four light waves by traveling acoustic waves. The effect has received much attention in the past few decades, especially for applications in fiber sensing, signal processing, and optical delay lines. Here, we report BE-FWM with optical chiral states (i.e., circular polarization and vortex states) in twisted photonic crystal fiber, by leveraging the topology-selective Brillouin effect. Phase-matching has the consequence that the traveling acoustic gratings created by circularly polarized vortex pump and Stokes in the stimulated Brillouin scattering can be used to modulate a frequency-shifted probe, where the pump/Stokes and probe have different circular polarization or topological charges. Based on our findings, we demonstrate cross-frequency selective information transfer and show that the information is transferred only when pump and probe have opposite circular polarization.

Authors with CRIS profile

Birgit Stiller

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE)

How to cite

APA:

Zeng, X., & Stiller, B. (2025). Brillouin-enhanced four-wave mixing with optical chiral states. APL Photonics, 10(7). https://doi.org/10.1063/5.0265616

MLA:

Zeng, Xinglin, and Birgit Stiller. "Brillouin-enhanced four-wave mixing with optical chiral states." APL Photonics 10.7 (2025).

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