Gas detection by correlation spectroscopy employing a multimode diode laser
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1201529
- author
- Lou, Xiutao ; Somesfalean, Gabriel LU and Zhiguo, Zhang LU
- organization
- publishing date
- 2008
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Optics
- volume
- 47
- issue
- 13
- pages
- 2392 - 2398
- publisher
- Optical Society of America
- 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
- 2016-04-01 12:34:56
- date last changed
- 2022-01-27 07:06:12
@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 = {{Optical Society of America}}, series = {{Applied Optics}}, title = {{Gas detection by correlation spectroscopy employing a multimode diode laser}}, url = {{http://dx.doi.org/10.1364/AO.47.002392}}, doi = {{10.1364/AO.47.002392}}, volume = {{47}}, year = {{2008}}, }