• DocumentCode
    956039
  • Title

    Near-infra-red absorption using InGaAsP sources

  • Author

    Temkin, H. ; Chin, A.K.

  • Author_Institution
    Bell Laboratories, Murray Hill, USA
  • Volume
    16
  • Issue
    11
  • fYear
    1980
  • Firstpage
    437
  • Lastpage
    439
  • Abstract
    The potential of InGaAsP light-emitting diodes (l.e.d.s) as light sources for quantitative absorption measurements in the 0.9¿1.6 ¿m region is discussed. Since a variety of chemicals, including atmospheric water vapour and pollutants such as CO2 and NO2 have absorption bands in the spectral region spanned by InGaAsP l.e.d.s, this technique is useful in evaluating impurity content. Detection of the atmospheric water vapour band centred at 1.38 ¿m is demonstrated. The application of this technique for assessing the OH content of optical fibres is also discussed.
  • Keywords
    III-V semiconductors; atmospheric measuring apparatus; gallium arsenide; indium compounds; light emitting diodes; Co2; InGaAsP LED; No2; OH content; atmospheric water vapour; optical fibres; quantitative absorption measurements;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19800305
  • Filename
    4244073
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=956039