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Updated: Jul 16, 2026
Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
Combined time- and wavelength-division-multiplexing demodulation technique of fiber grating sensor arrays using a
Bo Dong1, Shiya He, Yang Hushu
1Institute of Modern Optics, Nankai University, Tianjin, China. db1978@163.com
Abstract:
Combined time- and wavelength-division-multiplexing demodulation technique of fiber Bragg grating (FBG) sensor arrays using a tunable pulsed laser is proposed and demonstrated. A tunable fiber laser based on a matched FBG is applied. The wavelengths of the sensing FBGs are obtained by detecting the maximum voltages with a photodiode that avoids the complex demodulation process. The advantages of this scheme are simple structure, high signal-to-noise ratio, and the sensing signals obtained by detecting the maximum voltages.
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