We propose and investigate a scheme for differential detection of the magneto-optic rotation (MOR) effect, where a linearly polarized bichromatic laser field is coherent population-trapping (CPT)-resonant with alkali atoms, and discuss the application of this effect to CPT-based atomic clocks. The results of our study indicate that laser noise in a vertical cavity surface-emitting laser-based CPT atomic clock can be effectively suppressed by the proposed scheme. The proposed scheme promises to realize a packaged MOR-CPT atomic clock that has significantly better frequency stability coupled with similar power consumption, volume, and cost when compared with currently available packaged CPT atomic clocks.
CITATION STYLE
Tan, B., Tian, Y., Lin, H., Chen, J., & Gu, S. (2015). Noise suppression in coherent population-trapping atomic clock by differential magneto-optic rotation detection. Optics Letters, 40(16), 3703. https://doi.org/10.1364/ol.40.003703
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