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Oxygen measurement by multimode diode lasers employing gas correlation spectroscopy

Lou, Xiutao ; Somesfalean, Gabriel LU ; Chen, Bin and Zhang, Zhiguo (2009) In Applied Optics 48(5). p.990-997
Abstract
Multimode diode laser (MDL)-based correlation spectroscopy (COSPEC) was used to measure oxygen in ambient air, thereby employing a diode laser (DL) having an emission spectrum that overlaps the oxygen absorption lines of the A band. A sensitivity of 700 ppm m was achieved with good accuracy (2%) and linearity (R-2 = 0.999). For comparison, measurements of ambient oxygen were also performed by tunable DL absorption spectroscopy (TDLAS) technique employing a vertical cavity surface emitting laser. We demonstrate that, despite slightly degraded sensitivity, the MDL-based COSPEC-based oxygen sensor has the advantages of high stability, low cost, ease-of-use, and relaxed requirements in component selection and instrument buildup compared with... (More)
Multimode diode laser (MDL)-based correlation spectroscopy (COSPEC) was used to measure oxygen in ambient air, thereby employing a diode laser (DL) having an emission spectrum that overlaps the oxygen absorption lines of the A band. A sensitivity of 700 ppm m was achieved with good accuracy (2%) and linearity (R-2 = 0.999). For comparison, measurements of ambient oxygen were also performed by tunable DL absorption spectroscopy (TDLAS) technique employing a vertical cavity surface emitting laser. We demonstrate that, despite slightly degraded sensitivity, the MDL-based COSPEC-based oxygen sensor has the advantages of high stability, low cost, ease-of-use, and relaxed requirements in component selection and instrument buildup compared with the TDLAS-based instrument. (C) 2009 Optical Society of America (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Optics
volume
48
issue
5
pages
990 - 997
publisher
Optical Society of America
external identifiers
  • wos:000264210900027
  • scopus:61449156463
ISSN
2155-3165
DOI
10.1364/AO.48.000990
language
English
LU publication?
yes
id
d8181b51-49e0-4c35-a09a-165e560ef0f0 (old id 1405044)
date added to LUP
2016-04-01 11:44:07
date last changed
2022-02-18 04:35:36
@article{d8181b51-49e0-4c35-a09a-165e560ef0f0,
  abstract     = {{Multimode diode laser (MDL)-based correlation spectroscopy (COSPEC) was used to measure oxygen in ambient air, thereby employing a diode laser (DL) having an emission spectrum that overlaps the oxygen absorption lines of the A band. A sensitivity of 700 ppm m was achieved with good accuracy (2%) and linearity (R-2 = 0.999). For comparison, measurements of ambient oxygen were also performed by tunable DL absorption spectroscopy (TDLAS) technique employing a vertical cavity surface emitting laser. We demonstrate that, despite slightly degraded sensitivity, the MDL-based COSPEC-based oxygen sensor has the advantages of high stability, low cost, ease-of-use, and relaxed requirements in component selection and instrument buildup compared with the TDLAS-based instrument. (C) 2009 Optical Society of America}},
  author       = {{Lou, Xiutao and Somesfalean, Gabriel and Chen, Bin and Zhang, Zhiguo}},
  issn         = {{2155-3165}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{990--997}},
  publisher    = {{Optical Society of America}},
  series       = {{Applied Optics}},
  title        = {{Oxygen measurement by multimode diode lasers employing gas correlation spectroscopy}},
  url          = {{http://dx.doi.org/10.1364/AO.48.000990}},
  doi          = {{10.1364/AO.48.000990}},
  volume       = {{48}},
  year         = {{2009}},
}