We interrogate an 11-grating sensor array with random wavelength overlap using a novel frequency-shifted interferometer. Fourier analysis of the interference signal as a function of the frequency shift resolves the positions of the grating.
© 2006 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2370) Fiber optics and optical communications : Fiber optics sensors
Y. Liu, L. Qian, B. Qi, and X. Gu, " Fiber Grating Sensor Array Interrogation Using a Frequency-Shifted Interferometer and Fourier Analysis," in Optical Amplifiers and Their Applications/Coherent Optical Technologies and Applications, Technical Digest (CD) (Optical Society of America, 2006), paper CWD4.
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