READ ME File For Dataset 'Mode decomposition for multicore fibers based on far-field intensity measurements'

Dataset DOI: 10.5258/SOTON/D3355

Date that the file was created: January,2025

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GENERAL INFORMATION
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ReadMe Author: Kunhao Ji, University of Southampton [ORCID ID:https://orcid.org/0000-0002-2300-5942]

Date of data collection: from November 2023 to January 2025

Information about geographic location of data collection: University of Southampton, U.K.

Related projects:
Multimode light shaping: from optical fibers to nanodevices, Horizon 2020 ERC (No. 802682)
Self-organization of light in multicore optical fibres: a route to scalable high-power lasers and all-optical signal processing, EPSRC(EP/T019441/1)

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SHARING/ACCESS INFORMATION
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Licenses/restrictions placed on the data, or limitations of reuse: CC-BY

Recommended citation for the data:

This dataset supports the publication:
AUTHORS:Kunhao Ji
TITLE:Mode decomposition for multicore fibers based on far-field intensity measurements
JOURNAL:Optics Letters

PAPER DOI IF KNOWN:

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DATA & FILE OVERVIEW
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This dataset contains: all originally measured and calcuated data for plotting figures within the article.

[File list (filenames, directory structure (for zipped files) and brief description of all data files)]

The figures are as follows:

Fig. 1. MCF cross-sections, corresponding supermode intensity distributions, and MDexamples.Isamp: sampled intensity (normalized
to maximum value); Irec: reconstructed intensity (normalized to maximum value) based on MD results; Idiff (∆I): difference between them. ∆ρ: power error (total power normalized to 1), ∆θ: phase error (unit, rad).

Fig. 2. Mode decomposition error analysis for the MCFs under testat different noiselevels. (a,b,c,d-1) Averaged mode power errorsof 200 simulations. (a,b,c,d-2) Averaged mode phase errorsof 200 simulations.The image size is 1400*1400 pixels in the simulations, with a pixel size of 5.5 µm.

Fig. 4. Experimental resultsforMCFsunder test.Each column displaying the comparisons between the measured and reconstructed intensity profiles (Imeas and Irec, both normalized to maximum value), along with their difference (Idiff),and correlation factors (Corr).

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METHODOLOGICAL INFORMATION
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Description of methods used for collection/generation of data: <Include links or references to publications or other documentation containing experimental design or protocols used in data collection>
The data include different kinds of formats, for instance, the beam profile imgages were collected with a CCD camera; the evolution of the mode contents is measured by applying mode decomposition method; the related simulation data are calculated with our numerical tools to double-check with the experimental results.

Methods for processing the data: <describe how the submitted data were generated from the raw or collected data>
The data were processed with Matlab.

Software- or Instrument-specific information needed to interpret the data, including software and hardware version numbers:
Excel, matlab, python, etc.


Environmental/experimental conditions:
In the lab at the Optoelectronic Research Centre


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DATA-SPECIFIC INFORMATION <Create sections for each datafile or set, as appropriate>
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Number of variables: details are given in each tab of the datafile.

Number of cases/rows: details are given in each tab of the datafile.

Variable list, defining any abbreviations, units of measure, codes or symbols used:details are given in each tab of the datafile.