Mid-infrared gas sensing using a photonic bandgap fiber

Nicolas Gayraud; Łukasz W. Komaszewski; James M. Stone; Jonathan Knight; Derryck T. Reid; Duncan P. Hand; William N. MacPherson

doi:10.1364/AO.47.001269

Mid-infrared gas sensing using a photonic bandgap fiber

Nicolas Gayraud, Łukasz W. Komaszewski, James M. Stone, Jonathan Knight, Derryck T. Reid, Duncan P. Hand, William N. MacPherson

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

94 Citations (Scopus)

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 50ppm based on our current experiment is predicted. © 2008 Optical Society of America.

Original language	English
Pages (from-to)	1269-1277
Number of pages	9
Journal	Applied Optics
Volume	47
Issue number	9
DOIs	https://doi.org/10.1364/AO.47.001269
Publication status	Published - 20 Mar 2008

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AU - Knight, Jonathan

AU - Reid, Derryck T.

AU - Hand, Duncan P.

AU - MacPherson, William N.

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N2 - 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 50ppm based on our current experiment is predicted. © 2008 Optical Society of America.

AB - 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 50ppm based on our current experiment is predicted. © 2008 Optical Society of America.

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Mid-infrared gas sensing using a photonic bandgap fiber

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