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A low-cost multimode fiber Bragg grating sensor system
2005
Advanced Sensor Systems and Applications II
A low-cost fiber optic sensor system based on multimode fiber and an LED light source is presented. A multimode fiber Bragg grating (MMFBG) element is used as a strain sensor. In a matched grating scheme, a MMFBG similar to the sensing one was used as a reference in the receiving unit. For detection of large wavelength shift we demonstrated the feasibility of MMFBG wavelength detection using a single mode fiber fused coupler edge filter. The high cost normally associated with wavelength
doi:10.1117/12.576055
fatcat:v3p72liuwzdfnnsvbsvgzprjwq