• DocumentCode
    3008166
  • Title

    Phase insensitive Frequency Modulation sensor for long distance CO2 monitoring

  • Author

    Deev, Andrei ; Wu, Sheng

  • Author_Institution
    California Inst. of Technol., Pasadena
  • fYear
    2007
  • fDate
    6-11 May 2007
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    In this paper we report on the latest progresses we made on the open-air long-distance (>1 km) CO2 monitor that is based on tunable diode laser two tone frequency modulation (TTFM) spectroscopy. To overcome the need to exactly determine and maintaining phase in the setup (Silver et al., 1992), we designed our TTFM transceiver so that it is phase insensitive.
  • Keywords
    frequency modulation; gas sensors; measurement by laser beam; optical modulation; semiconductor lasers; spectroscopy; CO2; long distance carbon dioxide monitoring; phase insensitive frequency modulation sensor; tunable diode laser; two tone frequency modulation spectroscopy; Apertures; Fluctuations; Frequency modulation; Gas detectors; Instruments; Laser noise; Low-frequency noise; Monitoring; Optical sensors; Transceivers;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics, 2007. CLEO 2007. Conference on
  • Conference_Location
    Baltimore, MD
  • Print_ISBN
    978-1-55752-834-6
  • Type

    conf

  • DOI
    10.1109/CLEO.2007.4452777
  • Filename
    4452777
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3008166