Abstract
Due to advantages such as electromagnetic stability, durability, and high sensitivity, fiber Bragg gratings have found application as sensors of physical quantities. A special place in the line of such devices is occupied by Bragg gratings with tilted strokes (Tilted fiber Bragg grating- TFBG). At the moment, TFBGs are used to estimate the velocity of two-phase flows, to create a torsion sensor, as temperature and deformation sensors, etc. This article examines the possibility of implementing a temperature sensor based on TFBG with an angle of inclination of 2° and 4° inscribed in a single-mode optical fiber. For this purpose, experimental studies of the dependence of the wavelength of the Bragg resonance on temperature have been carried out. The grating period is 540 nm and the length is 10 mm. The temperature ranged from 30 °C to 85 °C in increments of 5 degrees. The results of the experiment are to find a linear dependence of the minimum wavelength of the Bragg resonance λB on the change in ambient temperature.
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