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Robust, High-speed, All-Optical Atomic Magnetometer

J. M. Higbie·E. Corsini·D. Budker
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Abstract

A self-oscillating magnetometer based on the nonlinear magneto-optical rotation effect with separate modulated pump and unmodulated probe beams is demonstrated. This device possesses a bandwidth exceeding $1\khz$. Pump and probe are delivered by optical fiber, facilitating miniaturization and modularization. The magnetometer has been operated both with vertical-cavity surface-emitting lasers (VCSELs), which are well suited to portable applications, and with conventional edge-emitting diode lasers. A sensitivity of around $3 {\rm nG}$ is achieved for a measurement time of $1\s$.

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J. M. Higbie, E. Corsini, D. Budker. 2006-09-06. Robust, High-speed, All-Optical Atomic Magnetometer. https://doi.org/10.1063/1.2370597

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