• DocumentCode
    1087773
  • Title

    Fibre-tip displacement sensor using sinusoidal FM-based technique

  • Author

    Venkatesh, Svetha ; Sorin, W.V.

  • Author_Institution
    Hewlett-Packard Labs., Palo Alto, CA, USA
  • Volume
    27
  • Issue
    18
  • fYear
    1991
  • Firstpage
    1652
  • Lastpage
    1654
  • Abstract
    A frequency modulated dual-electrode DFB laser is used as the optical source for a sensor which is immune to polarisation and acoustic fluctuations affecting its fibre-optic leads. Detection of the quadrature components of the reflected signal allows unambiguous direction determination. A measurement accuracy of +or-20 nm is demonstrated over a range of several millimetres.
  • Keywords
    displacement measurement; distributed feedback lasers; fibre optic sensors; frequency modulation; measurement by laser beam; optical modulation; dual-electrode DFB laser; fibre-optic leads; frequency modulated; optical source; quadrature components; reflected signal; sinusoidal FM-based technique;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19911033
  • Filename
    132864
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1087773