Spatio-spectral quantum state estimation of photon pairs from optical fiber using stimulated emission
Year: 2025
Type: article
Abstract: 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-degree-of-freedom source at the single-photon level is challenging due to the large parameter space as well as limited emission rates and detection efficiencies. Here, we characterize photon pairs generated in optical fiber in the transverse-mode and frequency degrees of freedom by applying stimulated emission in both degrees of freedom while detecting in one of them at a time. This method may be useful in the quantum state estimation and optimization of various photon-pair source platforms in which complicated correlations across multiple degrees of freedom may be present.
Source: Optica Quantum
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: diamond
Awards: EFRI ACQUIRE: Microchip Photonic Devices for Quantum Communication over Fiber, G5011667281, QUANTUM OPTICAL MICROSCOPY OF BIOMOLECULES NEAR INTERFACES AND SURFACES (QUOMBIS), Novel Spontaneous Four-wave Mixing Techniques for Photon-pair Generation and Hyperentanglement, RAISE-TAQS: Enhancing Classical and Quantum Information Capacities with Imperfect Resources: Experimental Implementations and Theoretical Bounds, Generation, Control and Storage of Broadband Transverse-Mode-Entangled Photons
OpenAlex ID: W4409653234