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Gas detection by correlation spectroscopy employing a multimode diode laser

Lou, Xiutao; Somesfalean, Gabriel LU and Zhiguo, Zhang LU (2008) In Applied Optics 47(13). p.2392-2398
Abstract
A gas sensor based on the gas-correlation technique has been developed using a multimode diode laser (MDL) in a dual-beam detection scheme. Measurement of CO2 mixed with CO as an interfering gas is successfully demonstrated using a 1570 run tunable MDL. Despite overlapping absorption spectra and occasional mode hops, the interfering signals can be effectively excluded by a statistical procedure including correlation analysis and outlier identification. The gas concentration is retrieved from several pair-correlated signals by a linear-regression scheme, yielding a reliable and accurate measurement. This demonstrates the utility of the unsophisticated MDLs as novel light sources for gas detection applications.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Optics
volume
47
issue
13
pages
2392 - 2398
publisher
OSA
external identifiers
  • wos:000256365000078
  • scopus:47249091784
ISSN
2155-3165
DOI
10.1364/AO.47.002392
language
English
LU publication?
yes
id
2c701a0a-d697-4781-bd34-3180585f66c6 (old id 1201529)
date added to LUP
2008-09-15 10:49:53
date last changed
2017-08-06 03:51:00
@article{2c701a0a-d697-4781-bd34-3180585f66c6,
  abstract     = {A gas sensor based on the gas-correlation technique has been developed using a multimode diode laser (MDL) in a dual-beam detection scheme. Measurement of CO2 mixed with CO as an interfering gas is successfully demonstrated using a 1570 run tunable MDL. Despite overlapping absorption spectra and occasional mode hops, the interfering signals can be effectively excluded by a statistical procedure including correlation analysis and outlier identification. The gas concentration is retrieved from several pair-correlated signals by a linear-regression scheme, yielding a reliable and accurate measurement. This demonstrates the utility of the unsophisticated MDLs as novel light sources for gas detection applications.},
  author       = {Lou, Xiutao and Somesfalean, Gabriel and Zhiguo, Zhang},
  issn         = {2155-3165},
  language     = {eng},
  number       = {13},
  pages        = {2392--2398},
  publisher    = {OSA},
  series       = {Applied Optics},
  title        = {Gas detection by correlation spectroscopy employing a multimode diode laser},
  url          = {http://dx.doi.org/10.1364/AO.47.002392},
  volume       = {47},
  year         = {2008},
}