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Conferences > CLEO_Europe > 2019 > ch_6 > ch_6_5
  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper ch_6_5

High Sensitivity All-fibre Methane Sensor with Gas Permeable Teflon/Cryptophane-A Membrane

Rand Ismaeel, Alexander Beaton, Andrei Donko, Wanvisa Talataisong, Timothy Lee, Thierry Brotin, Martynas Beresna, Matthew Mowlem, and Gilberto Brambilla

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Abstract

We demonstrate a simple, cheap and compact all fibre methane sensor, with record sensitivity of 0.16 nm/ppm, composed of a D-shaped cross section optical fibre in between two fibre Bragg gratings. The flat side of the fibre is coated with a unique membrane used to solely detect methane, made by a gas permeable Teflon layer and doped with cryptophane-A molecules.

© 2019 IEEE

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