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

摘要: Abstract This paper reports on the measurement of optical path difference spectral interference signal by using peak-to-peak tracking method in wavelength domain. Numerical simulations are performed to produce spectrum based an all fibre Mach–Zehnder interferometer with a white light source. The is improvised measuring value corresponding bright fringes from phase plot for determination difference. results compared conventional and slope against wavenumber plot. Optical determined yields higher accuracy lower uncertainty.