READ ME File For 'Dataset for Internal Gas Composition and Pressure in As-drawn Hollow Core Optical Fibers'

Dataset DOI: 10.5258/SOTON/D1760

ReadMe Author: Shuichiro Rikimi, University of Southampton 

This dataset supports the publication:
AUTHORS:SHUICHIRO RIKIMI, YONG CHEN, THOMAS W. KELLY, IAN A. DAVIDSON, GREGORY T. JASION, MATTHEW PARTRIDGE,  KERRIANNE HARRINGTON, THOMAS D. BRADLEY, AUSTIN A. TARANTA, FRANCESCO POLETTI, MARCO N. PETROVICH, DAVID J. RICHARDSON AND NATALIE V. WHEELER 
TITLE: Internal Gas Composition and Pressure in As-drawn Hollow Core Optical Fibers
JOURNAL: Journal of Lightwave Technology
PAPER DOI: 10.1109/JLT.2022.3164810


This dataset contains: All the data used to generated the figures in the paper. Data collected experimentally and calculation results using parameters taken from papers referenced in the paper. 


The figures are as follows:

Fig. 1 (a) An optical image of a sealed end of an HCF. (b) A SEM image of the HC-PBGF used for the gas absorption measurement and the liquid water flow measurement.
Fig. 2 The experimental set-up of the absorption spectroscopy measurement.
Fig. 3 (a) Absorption lines of water vapour 10 minutes and 1.9 hours after opening the ends of the HC-PBGF. (b) Evolution of the measured water vapour absorption in the HC-PBGF.
Fig. 4 Comparison of the 1st run and the 4th run with numerical solution of pressure-driven gas flow and self-diffusion. 
Fig. 5 The experimental set-up of the Raman spectroscopy measurement.
Fig. 6 The SEM image of the Tubular HC-ARF and the Raman Stokes signatures of oxygen, nitrogen and water vapour recorded from the fiber 21 minutes after cleaving the ends.
Fig. 7 The evolution of the Raman stokes signal of (a) water vapour, (b) oxygen and (c) nitrogen with the numerical solution. 
Fig. 8 (a) Experimental setup of the capillary-driven flow in the HC-PBGF using the OTDR. (b) The OTDR traces of the HC-PBGF at t = 0 hour and at 12 hours. 
Fig. 9 Time variation of the rising water level inside the as-drawn fiber and the atmospheric-pressure fibers with the numerical calculation. 
Fig. 10 The schematic of the preform at the neck-down region.
Fig. 11 The Raman Stokes spectra between 2800 cm-1 and 3700 cm-1 detected from the HC-ARFs.

Date of data collection: July 2019 to April 2021

Information about geographic location of data collection: University of Southampton

Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

Related projects:
This project gratefully acknowledges funding from Lumenisity Ltd., EPSRC Programme grant ÒAirGuide PhotonicsÓ (EP/P030181/1) and the EPSRC National Hub in High Value Manufacturing (EP/N00762X/1). N.V . Wheeler gratefully acknowledges support from the Royal Society and F. Poletti acknowledges support from ERC project LightPipe (grant agreement n¡ 682724).


Date that the file was created: June, 2022