MEASUREMENT OF THE VEER AND ROTATION OF AN OPTICAL FIBRE USING A BRAGG GRATING

被引：0

作者：

Orazaliyeva, Sandugash ^{[1
]}

Wojcik, Waldemar ^{[2
]}

Yakubova, Muborak ^{[1
]}

Ongar, Bulbul ^{[3
]}

机构：

[1] Almaty Univ Power Engn & Telecommun, Alma Ata, Kazakhstan

[2] Lublin Univ Technol, Lublin, Poland

[3] Kazakh Acad Transport & Commun, Alma Ata, Kazakhstan

来源：

NEWS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN-SERIES OF GEOLOGY AND TECHNICAL SCIENCES | 2019年 / 06期

关键词：

sensors; fiber optic Bragg gratings; torsion measurement; rotation measurement;

D O I：

10.32014/2019.2518-170X.170

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

There is presented a method for measuring the angle of rotation and twisting using a periodic incline of tilted fibre Bragg grating (TFBG) with an inclination angle of 6 degrees recorded in a single-mode optical fibre. It was shown that when the sensor rotates through 180 degrees, the transmittance changes from 0.5 to 0.84 at a wavelength of 1541.2 nm. As a result of measurements, it was found that the highest sensitivity can be obtained for angles from 30 to 70 degrees concerning the necessary orientation. A change in the transmission spectrum occurs for cladding modes that change their intensity with a difference in the polarization of light propagation through the grating. The same design can be used to measure the angle of rotation. The possibility of obtaining a TFBG rotary device at an edge of 200 degrees with a length of more than 10 mm has been proved. It allows controlling both the angle of rotation and the twisting of the optical fibre using the manufactured TFBG.

引用

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页码：190 / 196

页数：7

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