• DocumentCode
    858796
  • Title

    Wavelength modulation technique for intra-cavity absorption gas sensor

  • Author

    Zhang, Min ; Wang, D.N. ; Jin, Wei ; Liao, Yanbiao

  • Author_Institution
    Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
  • Volume
    53
  • Issue
    1
  • fYear
    2004
  • Firstpage
    136
  • Lastpage
    139
  • Abstract
    Wavelength modulation spectroscopy by the use of a tunable optical filter was applied to an intra-cavity fiber laser gas sensor. The optimum pump power and the modulation amplitude that maximized the signal-to-noise ratio were found. A minimum detectable gas (C2H2) concentration of 1000 ppm was experimentally achieved.
  • Keywords
    fibre lasers; gas sensors; modulation spectroscopy; optical filters; optical pumping; optical sensors; optical tuning; optimisation; organic compounds; ring lasers; ICAGS; acetylene; intra-cavity absorption gas sensors; intra-cavity fiber laser; minimum detectable gas concentration; modulation amplitude optimization; pump power optimization; ring fiber laser; tunable optical filter; wavelength modulation spectroscopy; Absorption; Amplitude modulation; Fiber lasers; Gas detectors; Gas lasers; Optical fiber sensors; Optical filters; Pump lasers; Spectroscopy; Tunable circuits and devices;
  • fLanguage
    English
  • Journal_Title
    Instrumentation and Measurement, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9456
  • Type

    jour

  • DOI
    10.1109/TIM.2003.822189
  • Filename
    1259537
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=858796