Abstract
We report on our studies of the light shift in a miniature atomic clock based on Coherent Population Trapping (CPT) in Cesium. There is no data published in the literature on the frequency and intensity-related light shift coefficients for CPT atomic clock on the Cesium D 1 line, only for the D 2 line. With our data we fill this gap and report on the measurements of light shift for the Cs D 1 line in a MEMS buffer-gas cell. The behavior of the light shift due to different laser intensities, laser frequencies and due to different cell temperatures is discussed.
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