Mid-infrared gas sensing using a photonic bandgap fiber

Applied Optics
N GayraudW N Macpherson

Abstract

We demonstrate methane sensing based on Fourier transform infrared spectroscopy using a hollow-core photonic bandgap fiber guiding in the mid-infrared and idler pulses from a femtosecond optical parametric oscillator. Transmission measurements are presented for several fibers, and sensing is demonstrated using a fiber whose bandgap overlaps the methane fundamental absorption lines. The gas filling process of the air core is described, and qualitative methane concentrations measurements to 1000 ppm (parts in 10(6)) are reported. Operation down to 50 ppm based on our current experiment is predicted.

Citations

Sep 5, 2014·Medical Physics·Kam Kong ChowHaishan Zeng
Aug 23, 2018·Optics Express·Michał NikodemKrzysztof Abramski
Mar 17, 2019·Optics Express·Takumi FujigakiMitsuru Takenaka
Aug 25, 2010·Applied Optics·Isabelle DicaireLuc Thévenaz
Jun 12, 2013·Chemical Society Reviews·Ana M CubillasPhilip St J Russell
Nov 15, 2018·Micromachines·Liyang ShaoHwa-Yaw Tam
Jun 6, 2019·Optics Express·Michal NikodemRyszard Buczyński
May 30, 2020·Sensors·Ruowei YuLimin Xiao
May 14, 2021·Research : a Science Partner Journal·Jiacheng CaoWei Huang

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