Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7930172 | Optics Communications | 2015 | 4 Pages |
Abstract
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 a high sensitivity up to 16,539Â nm/RIU while RI of the MF is changeable with an external magnetic field strength. By monitoring wavelength shift of transmission spectrum of the MMI, magnetic field measurement is realized with a maximum sensitivity of â293Â pm/Oe in the range of 0-220Â Oe.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yangzi Zheng, Xinyong Dong, Chi Chiu Chan, Perry Ping Shum, Haibin Su,