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Optical fiber magnetic field sensor based on magnetic fluid and microfiber mode interferometer
A magnetic field sensor is proposed based on the combination of magnetic fluid (MF) and an optical microfiber mode interferometer (MMI). It is measured that the MMI is highly sensitive to ambient refractive index (RI) with ...
Magnetic field sensor with optical fiber bitaper-based interferometer coated by magnetic fluid
An optical fiber magnetic field sensor is demonstrated using a waist-enlarged fusion bitaper-based optical fiber Mach-Zehnder interferometer (MZI) coated by magnetic fluid (MF). Since refractive index (RI) of the MF is ...
Magnetic field sensor based on reflection spectrum measurement of fiber Bragg grating
A novel magnetic field sensor by using an optical fiber Bragg grating (FBG) cascaded by a cleaved optical fiber end, which is face surrounded with magnetic fluid (MF), is experimentally demonstrated. Through Fresnel ...