Temporary ultraviolet induced attenuation in anti-resonant hollow core fibers

2025/09/22 by Kerrianne Harrington, R.J. Mears, James M. Stone +3 · 1 voice
Engineering · #Advanced Fiber Optic Sensors

paper · doi:10.1364/oe.573573

openalex publication_date 2025/09/22 · openalex created_date 2025/09/23 · openalex updated_date 2026/06/11

Abstract

We observe that transmission of ultraviolet light in hollow core fibers at wavelengths below 280 nm can induce a temporary, spectrally broad attenuation feature centered at 325 nm. The induced loss matched the absorption spectrum of gaseous chlorine and was as high as 16 dB in a 4 meter length. The effect dissipated once the UV exposure below 280 nm was blocked.

Citations

• Optically active oxygen-deficiency-related centers in amorphous silicon dioxide
• Guidance of ultraviolet light down to 190 nm in a hollow-core optical fibre
• Optical absorption spectrum reveals gaseous chlorine in anti-resonant hollow core fibers

Discussions

• New paper 📝! In deep-UV AR-HCFs we found a reversible attenuation effect... like solarization, but temporary. We call it “pseudo-solarization.” doi.org/10.1364/OE.5... #research #photonics [bsky, 2 points, 0 comments]

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