We report a novel frequency-shifted interferometer that can be used to interrogate multiplexed fiber grating sensors. This technique can distinguish both the grating wavelengths and their spatial locations even when the grating spectra are overlapped.
© 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, H. Lo, and X. Gu, "Interrogation of Multiplexed Fiber Grating Sensors Using Frequency-Shifted Interferometer," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper JThC91.
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