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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 17 — Jun. 10, 2011
  • pp: 2531–2550

Methodology for detection of carbon monoxide in hot, humid media by telecommunication distributed feedback laser-based tunable diode laser absorption spectrometry

Lemthong Lathdavong, Jie Shao, Pawel Kluczynski, Stefan Lundqvist, and Ove Axner  »View Author Affiliations


Applied Optics, Vol. 50, Issue 17, pp. 2531-2550 (2011)
http://dx.doi.org/10.1364/AO.50.002531


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Abstract

Detection of carbon monoxide (CO) in combustion gases by tunable diode laser spectrometry is often hampered by spectral interferences from H 2 O and CO 2 . A methodology for assessment of CO in hot, humid media using telecommunication distributed feedback lasers is presented. By addressing the R14 line at 6395.4 cm 1 , and by using a dual-species-fitting technique that incorporates the fitting of both a previously measured water background reference spectrum and a 2 f -wavelength modulation lineshape function, percent-level concentrations of CO can be detected in media with tens of percent of water ( c H 2 O 40 % ) at T 1000 ° C with an accuracy of a few percent by the use of a single reference water spectrum for background correction.

© 2011 Optical Society of America

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(140.3600) Lasers and laser optics : Lasers, tunable
(300.1030) Spectroscopy : Absorption
(300.6260) Spectroscopy : Spectroscopy, diode lasers
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6390) Spectroscopy : Spectroscopy, molecular

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 9, 2010
Revised Manuscript: January 31, 2011
Manuscript Accepted: February 8, 2011
Published: June 1, 2011

Citation
Lemthong Lathdavong, Jie Shao, Pawel Kluczynski, Stefan Lundqvist, and Ove Axner, "Methodology for detection of carbon monoxide in hot, humid media by telecommunication distributed feedback laser-based tunable diode laser absorption spectrometry," Appl. Opt. 50, 2531-2550 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-17-2531

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