Magnet-sensitive optical fiber and its application in current sensor system

Tong Yu; Qin Geng Li; Rongsheng Chen; Jin-Li Yan

doi:10.1117/12.50036

1 August 1991 Magnet-sensitive optical fiber and its application in current sensor system

Tong Yu, Qin Geng Li, Rongsheng Chen, Jin-Li Yan

Proceedings Volume 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91; (1991) https://doi.org/10.1117/12.50036
Event: International Conference on Optical Fibre Sensors in China, 1991, Wuhan, China

Abstract

Terbium-doped optical fiber has a high Verdet constant and is called a magnet-sensitive fiber. It is of importance for a variety of applications, including magnetic field sensors, current sensors, and fiber-type isolators. In this paper, the authors describe magnet-sensitive optical fiber fabrication, magneto-optic coefficient measurement, and its application in current sensor systems. Experimental results show that the Verdet constant of magnet-sensitive fiber containing high rare-earth content (approximately 4000 parts in 106) is 2.7 times as high as that of ordinary silica-based fiber. When tested in current sensor systems, it gives similar performance observed in ultralow birefringent fiber.

Citation Download Citation

Tong Yu, Qin Geng Li, Rongsheng Chen, and Jin-Li Yan "Magnet-sensitive optical fiber and its application in current sensor system", Proc. SPIE 1572, International Conference on Optical Fibre Sensors in China OFS(C) '91, (1 August 1991); https://doi.org/10.1117/12.50036

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