title: Integrated optics magnetic sensor from 2 kHz to 9 GHz.
abstract: A new type of integrated optical magnetic field sensor is presented in this paper. The proposed sensor consists of a Mach-Zehnder waveguide interferometer and a doubly loaded loop antenna. Such a structure can successfully avoid detection of the undesired electric field signal. The size of the sensor is 35 mm×6 mm×1 mm. The measurements show that the frequency response is from 2 kHz to 9 GHz, the dynamic range is 98 dB, and the minimum detectable magnetic field is 51.8 μA/m at 1 GHz. Therefore, this sensing system can be used in electromagnetic compatibility measurements.
authors.affiliation: School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China. sunbao@uestc.edu.cn
authors.forename: Bao
authors.initials: B
authors.lastname: Sun
authors.forename: Fushen
authors.initials: F
authors.lastname: Chen
authors.forename: Kaixin
authors.initials: K
authors.lastname: Chen