Laser & Optoelectronics Progress
Brief Survey of Atomic Clocks Based on Coherent Population Trapping
Weiquan Cai
Abstract
A brief review about the development of the coherent population trapping (CPT) based atomic clocks is presented. The physics principle of the CPT effect is simply explained, the basic configurations for making the clocks, including their features and the current situation in study and in manufacture, are described, and finally, the applications and the prospects of CPT atomic clocks are predicted.