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Comparison of discharge lamp and laser pumped cesium magnetometers

Groeger, Stefan ; Pazgalev, Anatoly S. ; Weis, Antoine

In: Applied Physics B: Lasers and Optics, 2005, vol. 80(6), p. 645 - 654

We have performed a comparison of laser (LsOPM) and lamp (LpOPM) pumped cesium vapor magnetometers. Although the LsOPM operated 50% above its shot- noise limit we found an intrinsic sensitivity of 15 fT/√Hz and 25 fT/√Hz for the LsOPM and the LpOPM, respectively. Two modes of operation, viz. the phase-stabilized and the self-oscillating modes, were investigated and found to yield a similar...