Three - Axis Fiber Laser Magnetometer

Introduction: Acoustic detection of targets in shallow water environments is difficult due to high levels of anisotropic acoustic background noise. Detection range can be improved by simultaneously measuring nonacoustic signatures such as electromagnetic fields. A fiber laser vector magnetometer has been developed for seabed-mounted surveillance arrays. Three orthogonally mounted sensors measure each component of the Earth’s field. Perturbations within these signals enable detection and tracking of remote targets.