Fig. 2.19 Functional scheme of the compact quantum frequency standard on the cesium
(or rubidium) cell. “5 MHz QO”—the quartz oscillator, PD—the photodiode, “Lock-in”—the
mixer, the phase detector, “530 Hz”—the oscillator with frequency of 530 Hz, “10 kHz”—the
2.9 Modern Optoelectronic Methods for Precision RF Oscillation Formation
59
(or rubidium) cell. “5 MHz QO”—the quartz oscillator, PD—the photodiode, “Lock-in”—the
mixer, the phase detector, “530 Hz”—the oscillator with frequency of 530 Hz, “10 kHz”—the
2.9 Modern Optoelectronic Methods for Precision RF Oscillation Formation
59