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

被引：84

作者：

Kornaszewski, L. ^{[1
]}

Gayraud, N.

Stone, J. M.

MacPherson, W. N.

George, A. K.

Knight, J. C.

Hand, D. P.

Reid, D. T.

机构：

[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH1S 4AS, Midlothian, Scotland

[2] Univ Bath, Ctr Photon & Photon Mat, Dept Phys, Bath BA2 7AY, Avon, England

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 18期

基金：

英国工程与自然科学研究理事会;

关键词：

ABSORPTION-SPECTROSCOPY; CRYSTAL FIBER; GUIDANCE;

D O I：

10.1364/OE.15.011219

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 mu m methane absorption region. The method has applications in gas sensing for remote or hazardous environments and potentially at very low concentrations. (c) 2007 Optical Society of America.

引用

页码：11219 / 11224

页数：6

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