Estimation of photon number distribution and derivative characteristics of photon-pair sources
arXiv:2309.04217 · doi:10.1364/OPTCON.524729
Abstract
The evaluation of a photon-pair source employs characteristic metrics like the photon-pair generation rate, heralding efficiency, and second-order correlation function, all of which are determined by the photon number distribution of the source. The photon number distribution, however, can be altered due to spectral or spatial filtering and optical losses, leading to changes in the above characteristics. In this paper, we theoretically describe the effects of different filterings, losses, and noise counts on the photon number distribution and related characteristics. From the theoretical description, an analytic expression for the effective mode number of the joint spectral density is also derived. Compared with previous methods for estimating the photon number distribution and characteristics, an improved methodology is introduced along with a suitable metric of accuracy for estimating the photon number distribution, focusing on photon-pair sources. We discuss the accuracy of the calculated characteristics from the estimated (or reconstructed) photon number distribution through repeated simulations and bootstrapped experimental data.
References in corpus (25)
- Entanglement of Orbital Angular Momentum States of Photons
- Quantum Cryptography with Entangled Photons
- 12-photon entanglement and scalable scattershot boson sampling with optimal entangled-photon pairs from parametric down-conversion
- Ultrathin quantum light source enabled by a nonlinear van der Waals crystal with vanishing interlayer-electronic-coupling
- Femtosecond Time-Bin Entangled Qubits for Quantum Communication
- Probing multimode squeezing with correlation functions
- Generation of maximally entangled states of qudits using twin photons
- A bright, pulsed two-mode squeezer
- Experimental reconstruction of photon statistics without photon counting
- Photon number resolving detection using time-multiplexing
- Optimised generation of heralded Fock states using parametric down conversion
- Heralded single-photon source utilizing highly nondegenerate, spectrally factorable spontaneous parametric downconversion
- Widely tunable single photon source with high purity at telecom wavelength
- Photon pair generation using four-wave mixing in a microstructured fibre: theory versus experiment
- Limits on the heralding efficiencies and spectral purities of spectrally-filtered single photons from photon pair sources
- Independent high-purity photons created in domain-engineered crystals
- Two independent photon pairs versus four-photon entangled states in parametric down conversion
- Photon statistics without counting photons
- Calibration of free-space and fiber-coupled single-photon detectors
- Direct generation of frequency-bin entangled photons via two-period quasi-phase-matched parametric downconversion
- Waveguided sources of consistent, single-temporal-mode squeezed light: the good, the bad, and the ugly
- Reconstruction of photon statistics using low performance photon counters
- Fast and simple characterization of a photon pair source
- Entanglement swapping with quantum-memory-compatible photons
- Joint multipartite photon statistics by on/off detection