High‐dimensional quantum communication: benefits, progress, and future challenges

D Cozzolino, B Da Lio, D Bacco… - Advanced Quantum …, 2019 - Wiley Online Library
In recent years, there has been a rising interest in high‐dimensional quantum states and
their impact on quantum communication. Indeed, the availability of an enlarged Hilbert …

Beyond photon pairs—nonlinear quantum photonics in the high-gain regime: a tutorial

N Quesada, LG Helt, M Menotti, M Liscidini… - Advances in Optics and …, 2022 - opg.optica.org
Integrated optical devices will play a central role in the future development of nonlinear
quantum photonics. Here we consider the generation of nonclassical states of light within …

Observation of a triangular-lattice pattern in nonlinear wave mixing with optical vortices

BP da Silva, GH dos Santos, AG de Oliveira… - Optica, 2022 - opg.optica.org
Preparation, control, and measurement of optical vortices are increasingly important, as they
play essential roles in both fundamental science and optical technology applications. Spatial …

Orthogonal spatial coding with stimulated parametric down-conversion

Y Xu, S Tang, A Nicholas Black, RW Boyd - Optics Express, 2023 - opg.optica.org
Orthogonal optical coding is widely used in classical multi-user communication networks.
Using the phase conjugation property of stimulated parametric down-conversion, we extend …

Beyond conservation of orbital angular momentum in stimulated parametric down-conversion

AG de Oliveira, G Santos, NR da Silva, LJ Pereira… - Physical Review …, 2021 - APS
Stimulated parametric down-conversion is a nonlinear optical process in which the orbital
angular momentum of light is conserved under most practical conditions. However, there are …

Measuring the time–frequency properties of photon pairs: A short review

I Gianani, M Sbroscia, M Barbieri - AVS Quantum Science, 2020 - pubs.aip.org
Encoding information in the time–frequency domain demonstrates its potential for quantum
information processing. It offers a novel scheme for communications with large alphabets …

Spatio-Spectral Quantum State Estimation of Photon Pairs from Optical Fiber Using Stimulated Emission

DB Kim, X Hu, AB U'Ren, K Garay-Palmett… - arXiv preprint arXiv …, 2024 - arxiv.org
Developing a quantum light source that carries more than one bit per photon is pivotal for
expanding quantum information applications. Characterizing a high-dimensional multiple …

Reconstructing the full modal structure of photonic states by stimulated-emission tomography in the low-gain regime

A Keller, AZ Khoury, N Fabre, M Amanti, F Baboux… - Physical Review A, 2022 - APS
Stimulated emission tomography (SET) is a powerful and successful technique to both
improve the resolution and experimentally simplify the task of determining the modal …

Stimulated emission tomography for entangled photon pairs with different detection spectral ranges

Y Yang, P Zhang, XS Ma - JOSA B, 2020 - opg.optica.org
Frequency nondegenerate entangled photon pairs have been employed in quantum
communication, imaging, and sensing. To characterize quantum entangled states with long …

Generation of hyper-entangled states in strongly coupled topological defects

N Bergamasco, JE Sipe, M Liscidini - Optics Letters, 2021 - opg.optica.org
We investigate spontaneous parametric downconversion (SPDC) in a waveguide array
supporting two strongly coupled topological guided modes. We show that it is possible to …