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DETECTION OF GAS CONCENTRATION BY CORRELATION SPECTROSCOPY USING A MULTI-WAVELENGTH FIBER LASER
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
KTH, School of Information and Communication Technology (ICT), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP.
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2011 (English)In: PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER, ISSN 1559-8985, Vol. 114, 469-479 p.Article in journal (Refereed) Published
Abstract [en]

A correlation spectroscopy (COSPEC) based on a multi-wavelength fiber laser is first proposed for the detection of gas concentration. The lasing wavelengths are selected to match several characteristic absorption peaks of the gas under test, and the gas concentration is easily measured by correlating it with the reference gas. The present method is immune from the instability of the light source and the influence of other gases. The concentration measurement of C2H2 is demonstrated in the experiment in its near-infrared dominant absorption region. The technique has prospects for simultaneous detection of multiple gases, and the measurement of mixed gases of C2H2 and CO2 is also analyzed.

Place, publisher, year, edition, pages
2011. Vol. 114, 469-479 p.
Keyword [en]
MULTIMODE DIODE-LASER, ABSORPTION-SPECTROSCOPY, PHOTONIC GENERATION, BRAGG GRATINGS, FBG
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-31996DOI: 10.2528/PIER11013106ISI: 000288534600029Scopus ID: 2-s2.0-79953051143OAI: oai:DiVA.org:kth-31996DiVA: diva2:409398
Note

QC 20110408

Available from: 2011-04-08 Created: 2011-04-04 Last updated: 2016-12-22Bibliographically approved

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He, Sailing

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Wang, B.Somesfalean, GabrielMei, L.Zhou, H.Yan, ChunshengHe, Sailing
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Zhejiang-KTH Joint Research Center of Photonics, JORCEPElectromagnetic Engineering
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