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Detection Of Gas Concentration By Correlation Spectroscopy Using A Multi-Wavelength Fiber Laser

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Author

  • B. Wang
  • Gabriel Somesfalean
  • L. Mei
  • H. Zhou
  • C. Yan
  • S. He

Summary, in English

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.

Department/s

Publishing year

2011

Language

English

Pages

469-479

Publication/Series

Progress in Electromagnetics Research-Pier

Volume

114

Document type

Journal article

Publisher

EMW Publishing

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1070-4698