Dataset for "Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibres"

We have measured the transmission spectrum of our optical fibre over time. The signal changes over 4 days, which is shown in the spectral traces with accompanying time stamps.

We have observed unexpected spectral attenuation of ultraviolet light in freshly drawn hollow core optical fibres, which we measure through a short length of fibre using a bentham monochromator and a broadband laser driven light source (EQ-99X). When the fibre ends are left open to atmosphere, this loss feature dissipates over time. The loss matches the absorption spectrum of gaseous (molecular) chlorine and, given enough time, the transmission spectrum of the fibre recovers to that expected from the morphological structure of the fibre. This dataset contains the spectral data output from the optical fibre that was analyzed to show this.

Keywords:
chlorine, optical fibres, hollow core optical fibre, gas absorption
Subjects:
Optics, photonics and lasers

Cite this dataset as:
Harrington, K., Mears, R., Stone, J., Wadsworth, W., Knight, J., Birks, T., 2024. Dataset for "Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibres". Bath: University of Bath Research Data Archive. Available from: https://doi.org/10.15125/BATH-01423.

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Data

ChlorineDataSet.zip
application/zip (34MB)
Creative Commons: Attribution 4.0

This data is the raw data for the characterisation on chlorine in a UV hollow core fibre. The zip folder contains spectral data taken from a length of hollow core fibre coupled to a broadband light source for over 4 days. Pictures of the fibre output and cross-section are included. The spectral data has time stamps attached. Original bentham files as well as exported DAT files are both included.

Creators

Robbie Mears
University of Bath

James Stone
University of Bath

Tim Birks
University of Bath

Contributors

University of Bath
Rights Holder

Documentation

Data collection method:

The light from a broadband laser driven light source was coupled into a hollow core optical fibre length, and the output spectrum was measured by a bentham monochromator. Transmission through a 2 metre length of fibre, which was freshly fabricated, was measured over the course of 4 days.

Technical details and requirements:

Equipment used: custom built Bentham monochromator, EQ-99X LDLS from Energetiq/Hamamatsu. Fujikura splicer was used to measure the fibre cleaves after measurements.

Funders

Engineering and Physical Sciences Research Council
https://doi.org/10.13039/501100000266

U-Care: Deep Ultraviolet Light Therapies
EP/T020903/1

Publication details

Publication date: 8 October 2024
by: University of Bath

Version: 1

DOI: https://doi.org/10.15125/BATH-01423

URL for this record: https://researchdata.bath.ac.uk/id/eprint/1423

Related papers and books

Harrington, K., Mears, R., Stone, J. M., Wadsworth, W. J., Knight, J. C., and Birks, T. A., 2024. Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibers. Optics Express, 32(22), 38072. Available from: https://doi.org/10.1364/oe.537473.

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Kerrianne Harrington

Departments:

Faculty of Science
Physics

Research Centres & Institutes
Centre for Photonics and Photonic Materials