Spectral decoding in fiber-optic interferometric sensor.

• Autorzy: Witczyński, M. , Borowińska, M. , Jastrzębska, I.
• Języki publikacji: EN

Abstrakty

EN

Principles of white-light interferometric techniques are described in this paper. Different spectral decoding methods applied to low coherence interferometry are also presented. Among them one can distinguish: direct recovering of an optical path difference with use of second interferometr as a spectrum analyzing device several wavelength interrogation with is a spectrometer or suitable narrow-band optical filters, and chromatic monitoring in wider spectrum. The last decoding mrthod was applied to test the performance of fiber optic interferometric pressure and temperature sensor. a diffraction grating was used to monitor a wide part of the output spectrum. The phase shift induced by measured changes in both sensor was determined with a fringe counting method.

• Czasopismo: Optica Applicata
• Rocznik: 1999
• Tom: Vol. 29, nr 1-2
• Strony: 213-228
• Opis fizyczny: Bibliogr. 17 poz., rys. 10

Twórcy

autor

Witczyński, M.

autor

Borowińska, M.

autor

Jastrzębska, I.

• Institute of Physics Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland