QUANTUM FREQUENCY STANDARD WITH LASER OPTICAL PUMPING Russian patent published in 2021 - IPC H03L7/26 

FIELD: measuring.

SUBSTANCE: invention relates to quantum frequency standards. To implement the technical result, a quantum frequency standard is proposed containing a thermostated quartz reference generator, a semiconductor laser with a vertical resonator, a glass cell with atomic vapors, a photodetector, a photodetector preamplifier, a frequency synthesizer based on a phase-locked loop (PLL), a control unit, an analog-to-digital converter, a digital-to-analog converter, wherein the glass cell contains rubidium atomic vapors; the frequency synthesizer based on a phase-locked loop (PLL) comprises a voltage-controlled generator, an N-fractional frequency divider, a phase and frequency detector with a current pumping module, a low-pass loop filter; the control unit is made based on a programmable logical integrated circuit.

EFFECT: increased reliability of the apparatus and provided operation of a quantum frequency standard with a lower frequency deviation rate and increased signal-to-noise ratio at the point of retention of CPT resonance.

1 cl, 7 dwg