Manipulation of stimulated Raman transition for atomic clock

This work aims to construct a quantum package for the low-power portable atomic clock based on stimulated Raman transition (SRT). We will first provide numerical simulation of the SRT by

using optical Bloch equation on a three-level atomic system. With two interacting light fields (detection and coupling fields) at far detuned from the resonance state, a kilohertz linewidth can be

measured for high precision usage. And then employ the simulated results to perform the paravirtual experiment for the fast and flexible integration of the targeted complete system. A vertical-cavity surface-emitting laser (VCSEL), resonance at Cs D1 line of 894.5nm and two side-bands from an electro-optical modulator, ±4.6GHz, is used to detect the frequency difference between the probe and coupling field (9.2GHz, the Ground-state hyperfine splitting of Cs). SRT has the characteristics of narrow linewidth and highly accuracy, and is widely used in fundamental physical and atomic clock measurements. It is a necessary equipment for low-orbit satellites. Finally, the optimization and miniaturization in both size and power has to be achieved for upload to a low-orbit satellites.