Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2409.09813 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- Optical parametric amplifiers (OPAs) in traveling wave configuration can generate localized spatial quantum correlations between a signal and an idler beam, a useful resource for quantum imaging. This study focuses on the classical transverse dynamics of the signal and idler beams when they propagate in a generic thick OPA at a nominally small angle. It shows that the beams tend to copropagate while maintaining a fixed separation, a phenomenon that we term hitching. We provide a model for hitching, validated by a numerical simulation, and we provide an experimental demonstration using four-wave mixing (4WM) in a hot atomic vapor. It shows that the OPA gain is the primary influence on the final hitching distance. These results have implications for the generation of multi-spatial-mode squeezed light for quantum imaging applications, where the exact spatial correspondence between the quantum fluctuations of the signal and the idler is of prime importance.