Magnetic field sensor with optical fiber bitaper-based interferometer coated by magnetic fluid

• Main Authors: Zheng, Yangzi, Dong, Xinyong, Yang, Runguang, Zhang, Shuqin, Chan, Julian Chi Chiu, Shum, Perry Ping
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/104941; http://hdl.handle.net/10220/25865
• Institution: Nanyang Technological University

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 sensitive to magnetic field, differential effective RI of the sensing fiber and h...