Title :
Phase tracker for low-finesse fibre Bragg grating Fabry-Perot interferometers
Author :
Chtcherbakov, A.A. ; Swart, P.L.
Abstract :
Presented is a technique for the continuous tracking of interferometer fringes. The technique uses a fringe quadrature signal to keep the state of the digital tracker in balance with the interferometer state. The quadrature signal is obtained through wavelength modulation of a semiconductor laser
Keywords :
Bragg gratings <low-finesse FBG Fabry-Perot interferometers, phase tracker>; Fabry-Perot interferometers <low-finesse FBG Fabry-Perot interferometers, phase tracker>; fibre optic sensors <low-finesse FBG Fabry-Perot interferometers, phase tracker>; optical tracking <low-finesse FBG Fabry-Perot interferometers, phase tracker>; fibre Bragg grating; fringe quadrature signal; interferometer fringes tracking; interferometric sensors; low-finesse Fabry-Perot interferometers; phase tracker; semiconductor laser; wavelength modulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20063123
