Optical Rotation Detection for Atomic Spin Precession Using a Superluminescent Diode

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

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