Details

Autor(en) / Beteiligte

• Lu, Hsuan-Hao
• Alshowkan, Muneer
• Myilswamy, Karthik V
• Weiner, Andrew M
• Lukens, Joseph M
• Peters, Nicholas A

Titel

Generation and characterization of ultrabroadband polarization-frequency hyperentangled photons

Ist Teil von

• Optics letters, 2023-11, Vol.48 (22), p.6031-6034

Ort / Verlag

United States: Optical Society of America

Erscheinungsjahr

2023

Quelle

OSA_美国光学学会数据库1

Beschreibungen/Notizen

• We generate ultrabroadband photon pairs entangled in both polarization and frequency bins through an all-waveguided Sagnac source covering the entire optical C- and L-bands (1530-1625 nm). We perform comprehensive characterization of high-fidelity states in multiple dense wavelength-division multiplexed channels, achieving full tomography of effective four-qubit systems. Additionally, leveraging the inherent high dimensionality of frequency encoding and our electro-optic measurement approach, we demonstrate the scalability of our system to higher dimensions, reconstructing states in a 36-dimensional Hilbert space consisting of two polarization qubits and two frequency-bin qutrits. Our findings hold potential significance for quantum networking, particularly dense coding and entanglement distillation in wavelength-multiplexed quantum networks.