Peak-to-peak tracking method for measurement of optical path difference: Revisited

This paper reports on the measurement of optical path difference of spectral interference signal by using the peak-to-peak tracking method in the wavelength domain. Numerical simulations are performed to produce the interference spectrum based on an all fibre Mach–Zehnder interferometer with a white...

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Bibliographic Details
Published inOptik (Stuttgart) Vol. 126; no. 24; pp. 5420 - 5422
Main Authors Ley, H.H., Yahaya, A., Munajat, Y.
Format Journal Article
LanguageEnglish
Published Elsevier GmbH 01.12.2015
Subjects
Fibre interferometer
Optical path difference
Peak-to-peak tracking method
White light
Fibre interferometer
White light
Optical path difference
Peak-to-peak tracking method
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Summary:This paper reports on the measurement of optical path difference of spectral interference signal by using the peak-to-peak tracking method in the wavelength domain. Numerical simulations are performed to produce the interference spectrum based on an all fibre Mach–Zehnder interferometer with a white light source. The peak-to-peak tracking method is improvised by measuring the wavelength value corresponding to bright fringes from the phase plot for determination of the optical path difference. The results are compared to the conventional peak-to-peak tracking method and measurement of the slope of phase against wavenumber plot. Optical path difference determined from the improvised method yields higher accuracy with lower uncertainty.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2015.09.070