Cancellation of Doppler shifts in a cold-atom CPT clock

E. A. Donley, F.-X. Esnault, E. Blanshan, J. Kitching
2013 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC)  
A compact cold-atom clock based on coherent population trapping (CPT) is being developed. Long-term goals for the clock include achieving a fractional frequency accuracy of 1×10 -13 in a package of less than 10 cm 3 in volume. Here we present an overview of a prototype clock design, and a systematic evaluation of the first-order Doppler shift. We also introduce our second-generation physics package.
doi:10.1109/eftf-ifc.2013.6702061 fatcat:r2wqrpxz7ra6bb5lvmwrjq2gga