In the paper some of the applications of tilted fiber Bragg grating-assisted sensors for conducting measurements of parameters of the surrounding media are presented. A short overview of tilted fiber Bragg gratings (TFBGs) structure and operating principle is provided. Some sensor designs utilizing TFBGs are described, including those working on effect of surface plasmon resonance. Experiments were conducted to investigate the test samples of the described sensors and their results are presented.
This paper presents a solution to one of the major problems of plasmonic fiber Bragg grating sensors concerning their high sensitivity to changes in the polarization state of light propagating through optical fiber. For the first time these kind of sensors have been produced using polarization maintaining fibers, thereby stabilization has been achieved using mechanical action and bending the supplied fiber. Comparative experiments have demonstrated that the sensor readings stability is at least an order of magnitude higher relative to other sensors, which record in a standard fiber with an isotropic structure.
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