Optical Rotation Detection for Atomic Spin Precession Using a Superluminescent Diode

Abstract

Abstract A superluminescent diode (SLD) as an alternative of laser is used to detect optical rotation for atomic spin precession. A more uniform Gauss configuration without additional beam shaping and a relatively high power of the SLD have a potential for atomic magnetometers, which is demonstrated in theory and experiments. In addition, the robustness and compactness enable a more practical way for optical rotation detections, especially for applications in magnetoencephalography systems.

Keywords

• Superluminescent diode
• atomic magnetometer
• magnetoencephalography
• atomic spin precession detection
• Larmor precession