CPT atomic clock frequency disciplining control method and CPT atomic clock frequency disciplining control device

Abstract

The invention discloses a CPT atomic clock frequency disciplining control method and a CPT atomic clock frequency disciplining control device, wherein a CPT atomic clock comprises a disciplining controller, and the method comprises the following steps: the disciplining controller determines a local frequency of the CPT atomic clock, and performs frequency division based on the local frequency to obtain a first second-pulse signal; the disciplining controller receives a second second-pulse signal input through an external port; based on the first second-pulse signal and the second second-pulsesignal, the disciplining controller determines frequency offset of the local frequency of the CPT atomic clock within a set time interval; and the disciplining controller performs disciplining adjustment for the local frequency of the CPT atomic clock according to the frequency offset. Thus, disciplining the frequency of the CPT atomic clock within short time is realized, and consequently a problem of frequency drift of the CPT atomic clock is restrained, moreover, disciplining is realized through the disciplining controller built in the CPT atomic clock, the disciplining controller is simplein structure and easy to debug, and automatic control and autonomous operation of frequency disciplining of the CPT atomic clock are promoted.

Description

technical field [0001] The present application relates to the technical field of atomic clocks, in particular to a CPT (Coherent Population Trapping, Coherent Population Trapping) atomic clock frequency taming control method and equipment. Background technique [0002] Atomic clocks are currently the most accurate timekeeping tools in the world. It plays an important role in communications, aerospace, satellite navigation and scientometric testing. CPT atomic clock is a new type of atomic clock designed based on the coherent population and confinement principle of atoms. It mainly uses two-color coherent light to interact with atoms to prepare atoms into a coherent state, and uses CPT signals as microwave frequency discrimination signals to realize atomic clock frequency resources. [0003] CPT atomic clock is different from traditional atomic clocks such as hydrogen, rubidium, and cesium in terms of working principle. The quantum part does not require a microwave resonator...

AI Technical Summary

Problems solved by technology

However, this method has problems such as complex structure, more resources required, and not easy to implement.

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