Data for "Quantum Communication with Quantum Dots Beyond Telecom Wavelengths via Hollow-Core Fibers"

This repository contains the data supporting the results presented in the manuscript “Quantum Communication with Quantum Dots Beyond Telecom Wavelengths via Hollow-Core Fibers” (pre-print version at https://arxiv.org/abs/2509.11889).Due to the large data volume and the requirement of hardware-specific acquisition software, raw time-tag files are not included. Instead, the dataset provides coincidence histograms and aggregated countrates that are sufficient to reproduce the data shown in the figures and the associated performance metrics discussed in the main text. Files included: fiber_attenuation_experimental_data.txt Experimentally measured wavelength-dependent attenuation of the nested anti-resonant nodeless fiber (NANF) used in this study.These data were used to generate the measured attenuation shown in Fig. 1. fiber_attenuation_simulation_data.txt Simulated total wavelength-dependent attenuation of an ipotetical optimized doubly nested anti-resonant nodeless fiber (DNANF) designed for low-loss transmission at quantum dot and telecom wavelengths (red dashed curves), following the methodology of Ref. [22].These data were used to generate the simulated attenuation shown in Fig. 1. g2.txt Coincidence histogram used to extract the second-order autocorrelation function g(2)(0) of the quantum dot single-photon source without co-propagating classical laser light.These data were used to generate the results shown in Fig. 3(a). g2_with_laser.txt Coincidence histogram used to extract the second-order autocorrelation function g(2)(0) of the quantum dot single-photon source in the presence of co-propagating classical laser light at telecom wavelength.These data were used to generate the results shown in Fig. 3(b). hom.txt Coincidence histogram used to evaluate the Hong–Ou–Mandel (HOM) interference visibility of the quantum dot single-photon source without co-propagating classical laser light.These data were used to generate the results shown in Fig. 3(c). hom_with_laser.txt Coincidence histogram used to evaluate the Hong–Ou–Mandel (HOM) interference visibility of the quantum dot single-photon source in the presence of co-propagating classical laser light at telecom wavelength.These data were used to generate the results shown in Fig. 3(d). BB84_polarization_countrates.json Detected single-photon countrates for the polarization-encoded BB84 quantum key distribution experiment. For each prepared polarization state (H, V, +, −), the file reports the measured countrates in the corresponding measurement bases at the receiver. These aggregated countrates were used to evaluate the quantum bit error rates (QBERs) and to assess the feasibility of quantum key distribution over the hollow-core fiber link. BB84_time_bin_countrates.json Detected single-photon countrates for the polarization-encoded BB84 quantum key distribution experiment. For each prepared polarization state (H, V, +, −), the file reports the measured countrates in the corresponding measurement bases at the receiver. These aggregated countrates were used to evaluate the quantum bit error rates (QBERs) and to assess the feasibility of quantum key distribution over the hollow-core fiber link.