Oxygen measurement by multimode diode lasers employing gas correlation spectroscopy
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1405044
- author
- Lou, Xiutao ; Somesfalean, Gabriel LU ; Chen, Bin and Zhang, Zhiguo
- organization
- publishing date
- 2009
- 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}}, }