Tunable dual-frequency laser source for coherent population trapping cesium atomic clocks

F. A. Camargo; P. Georges; G. Lucas-Leclin; G. Baili; L. Morvan; D. Dolfi; D. Holleville; S. Guerandel; I. Sagnes

doi:10.1117/12.2309273

5 January 2018 Tunable dual-frequency laser source for coherent population trapping cesium atomic clocks

F. A. Camargo, P. Georges, G. Lucas-Leclin, G. Baili, L. Morvan, D. Dolfi, D. Holleville, S. Guerandel, I. Sagnes

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Proceedings Volume 10564, International Conference on Space Optics — ICSO 2012; 105641A (2018) https://doi.org/10.1117/12.2309273
Event: International Conference on Space Optics 2012, 2012, Ajaccio, Corsica, France

Abstract

Coherent population trapping (CPT) has been demonstrated as an interesting technique for miniature atomic frequency references [1,2] and quantum information. It is based on the coupling of the two hyperfine ground states of an alkali atom – namely cesium (¹³³Cs) for atomic clocks – through excitation to a common atomic level by two phase-coherent laser fields nearly resonant with the atomic transitions. The frequency difference between the two laser fields is tuned at the atomic frequency splitting in the microwave range, equal to 9.192 GHz for ¹³³Cs atoms. Outputs powers in the mW range and narrow-linewidth emission (<500 kHz) are required for the two laser beams.

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F. A. Camargo, P. Georges, G. Lucas-Leclin, G. Baili, L. Morvan, D. Dolfi, D. Holleville, S. Guerandel, and I. Sagnes "Tunable dual-frequency laser source for coherent population trapping cesium atomic clocks", Proc. SPIE 10564, International Conference on Space Optics — ICSO 2012, 105641A (5 January 2018); https://doi.org/10.1117/12.2309273

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