README

This README file describes the data organization for the paper titled "Polarization Purity and Dispersion Characteristics of Nested Antiresonant Nodeless Hollow-Core Optical Fiber at Near- and Short-wave-IR Wavelengths for Quantum Communications".

Authors:
Ivi Afxenti (1), Lijun Yu (1), Taylor Shields (1),
Daniele Faccio (2), Thomas Bradley (3, 4),
Lucia Caspani (5), Matteo Clerici (1, 6),
Adetunmise C. Dada (2, *)

Institutions:
 1. James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, United Kingdom
 2. School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
 3. Optoelectronics Research Centre, Zepler Institute, University of Southampton, SO17 1BJ, United Kingdom
 4. Now at High-Capacity Optical Transmission Laboratory, Eindhoven University of Technology, 5600 MB, Netherlands
 5. Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow G1 1RD, United Kingdom
 6. Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell’Insubria, Via Valleggio 11, 22100, Como, Italy


The data corresponds to the figures presented in the paper and is provided in *.txt, *.csv or *.dat format, and in MATLAB readable format (*.fig).
Below is a description of the data files associated with each figure.



DATA DESCRIPTION:

Each folder contains the data points used for the figures in the paper. The data is organized by figure number and is available in .txt or .dat formats.



FIGURE 2 folder: Fig2_PER_C-Band
This folder contains the data for the polarisation extinction ratio (PER) plots 
● Files: "Fig2_PER_C-Band_a.csv" and "Fig2_PER_C-Band_b.csv" contain data for Figure 2 a and Figure 2 b respectively.



FIGURE 3 folder: Fig3_LP_C-LBand_Light
● Subfolders:  Figure 3a, Figure 3b, Figure 3c, and Figure 3d.

Figure 3a:
● Contains three .txt files: one for the x-axis values, one for the y-axis values, and one for the mean values measured from the lock-in amplifier for each wavelength at different polarization inputs. It also contains a *.fig file which is a figure file with data openable in MATLAB.  

Figure 3b, 3c, and 3d:
● Each folder contains *.csv or *.dat files with the x-axis and y-axis values for the respective plots.



FIGURE 4 folder: Fig4_Dispersion
● Subfolders: 'before fiber' and 'after fiber'.

Before Fiber:
● Contains pulse data in three *.txt files, each corresponding to different filters used, and one *.txt file for the x-axis values.

After Fiber:
● Contains six *.txt files: three for the x-axis data and three for the y-axis data, corresponding to the three filters used.



FIGURE 5 folder: Fig5_PER_Broadband
● The PER values plotted for each filter are in three separate *.txt files, and a fourth *.txt file contains the x-axis data.


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For any further questions or clarifications, please refer to the specific data files or contact the Authors.