Magnetic-field sensing with a single-mode fiber

作者：S. C. Rashleigh · 发表于：Optics Letters · 年份：1981 · DOI：10.1364/ol.6.000019 · 被引用次数：88 · 研究领域：Advanced Fiber Optic Sensors、Magneto-Optical Properties and Applications、Photonic and Optical Devices

A fiber-optic magnetic-field sensor is constructed by bonding a single-mode fiber to a nickel cylinder. The magnetic field, by means of the magnetostrictive effect, alters the state of polarization of light in the fiber. A sensitivity of 1.76 x 10(-2) rad/m Oe is demonstrated, permitting detection of fields as small as 4.4 x 10(-6) Oe/m of fiber.