• DocumentCode
    988005
  • Title

    Three-wavelength combination source for white-light interferometry

  • Author

    Wang, D.N. ; Ning, Y.N. ; Grattan, K.T.V. ; Palmer, A.W. ; Weir, K.

  • Author_Institution
    Dept. of Electr., Electron. & Inf. Eng., City Univ., London, UK
  • Volume
    5
  • Issue
    11
  • fYear
    1993
  • Firstpage
    1350
  • Lastpage
    1352
  • Abstract
    A three-wavelength combination source in white-light interferometry (WLI) is used to simplify the central fringe identification. It is found that, by using this technique, the minimum signal-to-noise ratio required by the system to identify the central fringe position can be reduced when compared with the use of two-wavelength combination sources. This technique is simple and effective and has potential uses in coherence-multiplexed interferometric sensor systems.<>
  • Keywords
    light interferometry; light sources; optical sensors; central fringe identification; coherence-multiplexed interferometric sensor systems; minimum signal-to-noise ratio; three-wavelength combination source; white-light interferometry; Coherence; Diode lasers; Interference; Light sources; Metrology; Optical coupling; Optical interferometry; Power generation; Signal to noise ratio; Stability;
  • fLanguage
    English
  • Journal_Title
    Photonics Technology Letters, IEEE
  • Publisher
    ieee
  • ISSN
    1041-1135
  • Type

    jour

  • DOI
    10.1109/68.250066
  • Filename
    250066
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=988005