CPT atomic clock control method

Abstract

The invention discloses a CPT atomic clock control method. The method is executed by a CPT atomic clock control system. The system comprises a laser, a physical system, a microwave frequency control module, a laser frequency control module, a temperature control module, a signal detection module, a magnetic field control module and a control chip. The method comprises steps of initializing the control chip, the laser, the physical system and all control modules; controlling the temperature of the laser and the physical system; scanning laser frequencies and detecting laser resonance signals; adjusting phase position of laser modulation signals; scanning microwave frequencies and detecting microwave resonance signals; and locking the microwave frequencies, detecting whether the microwave frequencies are unlocked and repeatedly detecting and judging whether the microwave frequencies and the laser frequencies are unlocked.

Description

technical field [0001] The invention relates to the field of atomic clocks. More specifically, it relates to a CPT atomic clock control method. Background technique [0002] Atomic clocks have different volumes, power consumption, and stability indicators due to different working principles and quantum state preparation requirements. In small-volume, low-power application scenarios, coherent population-trapped (CPT) atomic clocks have obvious advantages. Due to their unique working principles, they have received attention and a lot of research since they were proposed. For small-volume, low-power application scenarios, there are CPT atomic clock products based on different control chips on the market, namely CPT atomic clocks based on FPGA control and CPT atomic clocks based on single-chip microcomputer control, both of which require reasonable timing design and programming. The CPT atomic clock based on FPGA control has high control precision, but the power consumption an...

AI Technical Summary

Problems solved by technology

Many domestic related researches are still in the state of desktop systems, without productization, and most of the control and debugging of the system are realized manually, lacking complete automatic control, requiring R&D personnel to track and debug at all times, which consumes manpower and time costs

At the same time, when there is a problem in the system, due to the lack of automatic procedures, the positioning speed of the problem is slow and inaccurate, which limits the speed of scientific research and product development

Images