Optical fiber magnetic field sensor based on magnetic fluid and microfiber mode interferometer

• Main Authors: Zheng, Yangzi, Dong, Xinyong, Chan, Chi Chiu, Shum, Perry Ping, Su, Haibin
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2015
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
• Online Access: https://hdl.handle.net/10356/79370; http://hdl.handle.net/10220/25866
• Institution: Nanyang Technological University

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 16,539 nm/RIU while RI of the MF is changeable with...