DOI 10.17586/0021-3454-2020-63-10-930-937
UDC 681.586.5
USING AN OPTICAL FIBER MACRO BEND AS THE BASIS FOR CREATING A MASS SENSOR
Belarusian State Academy of Communications, Industry Laboratory of Information and Communication Technologies;
A. O. Zenevich
Belarusian State Academy of Communications, Industry Laboratory of Information and Communication Technologies; Rector;
S. V. Zhdanovich
PhD, Associate Professor; Belarusian State Academy of Com-munications, Industry Laboratory of Information and Communication Technologies; Head of the Laboratory;
T. M. Lukashik
Belarusian State Academy of Communications, Industry Laboratory of Information and Communication Technologies; Teacher of the 1st Category;
N. A. Lahutsik
Belarusian State Academy of Communications, Industry Laboratory of Information and Communication Technologies;
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Abstract. A fiber-optic sensor is developed which, in contrast to widely used detectors, allows to detect not only the fact of crossing the protected area border intrusion into, but also a characteristic of the intruder, namely its mass. The optical fiber selected for the presented sensor, G 655, demonstrate the highest susceptibility to macro bending. It shown that an increase in the length of the macro bending arc at a constant radius, R, leads to an increase in the attenuation of optical radiation passing through the fiber. This dependence is close to linear in the range of macro bend arc lengths from zero to πR.
Keywords: fiber-optic sensor, optical fiber, macro bending, wavelength, attenuation coefficient
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