Mid-infrared methane detection in a photonic bandgap fiber using a broadband optical parametric oscillator

L. Kornaszewski, N. Gayraud, J. M. Stone, W. N. MacPherson, A. K. George, J. C. Knight, D. P. Hand, D. T. Reid

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

We demonstrate methane sensing using a photonic bandgap fiber-based gas cell and broadband idler pulses from a periodically-poled lithium niobate femtosecond optical parametric oscillator. The hollow core of the fiber was filled with a methane:nitrogen mixture, and Fourier transform spectroscopy was used to measure transmission spectra in the 3.15-3.35 µm methane absorption region. The method has applications in gas sensing for remote or hazardous environments and potentially at very low concentrations. © 2007 Optical Society of America.

Original languageEnglish
Pages (from-to)11219-11224
Number of pages6
JournalOptics Express
Volume15
Issue number18
DOIs
Publication statusPublished - 9 Sep 2007

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