QUANTUM FREQUENCY STANDARD Russian patent published in 2023 - IPC H03L7/26 H01S1/06 

FIELD: frequency stabilization techniques.

SUBSTANCE: invention relates to frequency stabilization technique and can be used in quantum frequency standards (QFS) of on-board equipment of mobile carriers. The invention contains the first magnetic screen, in the center of which there is a pump source, a filter cell, an absorption chamber with a resonator, and a first photodetector connected to the first input of the microwave generator control circuit, the output of which is connected to the resonator placed in the center of the coils, connected to the power supply, the absorption chamber is made in the form of the first and second sections, respectively, placed on the first and second optical axes parallel to the zero optical axis, on the first optical axis there is the first section of the absorption chamber, after which the first photodetector is installed, on the second optical axis there is the second section of the absorption chamber, after which the second photodetector is installed, the output of which is connected to the second input of the microwave generator control circuit, the coil is made in the form of oppositely connected sections, the axes of which are oriented along the first and second optical axes, and the first and second sections of the absorption chamber are connected by a jumper .

EFFECT: reducing the influence of variations in the magnitude and direction of the external magnetic field on the resonant frequency of the device.

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